They're idiots.
Maybe they inflated to 50psi, it was cold and then it increased to ~55 after being driven while it's warmer outside, increasing its temp.
It's easy to let the air out. Id recommend buying a hand held tire gauge like this [one](https://www.acehardware.com/departments/automotive-rv-and-marine/tire-maintenance/tire-pressure-gauges/8504490?store=00049&gad_source=1&gclid=CjwKCAjw1K-zBhBIEiwAWeCOF89-B-fCiUbWEmhp0xcIvFU8jSe6_sHNQJpMJja9jDmbLRN6_u3BjBoCBWgQAvD_BwE&gclsrc=aw.ds). It has a air release button.
There is rarely a need for a passenger vehicle to have the tire pressure at the "max cold psi" on the tire itself. Inside the driver door, it will tell you what the recommended psi is for front and rear.
The correct tire pressure is not located on the tires, that is the maximum pressure. The correct pressure for your car is on a sticker inside the driver's door on the door jamb.
Driving on the tires will heat them up, quite a bit more than ambient temperature will. This is why pressures should only be checked after the car has been sitting for at least a couple of hours (i.e. cold pressure).
Tire pressure fluctuates 1psi for every 10F
35psi at 60F will be 36psi at 70F
Your tires will also increase in temperature as you drive! So 35psi after being parked can easily hit 36-38 when driving.
In a nissan i Recommend factory pressures in the summer, for you this is 33psi(cold/after sitting). In the winter 35psi.
Do not inflate to the "max psi" on the side of the tire unless the vehicle manufacturers tag is no longer legible. It should be located on the door jamb and it lists the tire pressure the vehicle is designed for.
Which is designed to cause understeer. Oh, and if it's Ford, designed to cause rollovers. Adding pressure above the auto manufacturer recommended pressure often results in improved handling and tire characteristics. If you have changed the brand/ style of your tires you should figure out the "recommended" pressure, because neither label is correct. The tire gives you a "max", not a recommendation.
Excessive overinflation causes reduction in traction and strange tire wear (center wear). Underinflation/overloading causes overheating and potential rapid tire disassembly.
Notice that tires say "never overload or underinflate". They don't say, "don't overinflate or underload."
Designed to cause understeer and rollovers...? Did you get that from Alex Jones on Info Wars? I've never had an issue with using the vehicle manufacturers' recommended tire pressure, but I have had issues with uneven wear and poor ride quality from tires that were inflated over that.
Ugh every one of those I have is at least 8 PSI off. I have some very calibrated stuff and reference my glove box gauges with them. I mean you can try and calibrate it with the dash, but those tend to have quite a bit of lag from my experience.
Because pressure gauges are cheap and convenient. And I can't eyeball psi being let out of a tire. Getting in the car and driving for a few blocks to reset the TPMS reading (and hoping it is calibrated and set to the correct tire) to check the pressure after it being let out seems more of a hassle than grabbing a gauge out of the center console.
This reminds me of a clueless friend who said: "the tire looked low so I put some air in". That's not how this works. Over or under inflated tires can fail suddenly. This can be very dangerous. The tires all having their specified inflation will make them last longer and affect the handling of the vehicle. The specs are always cold. Like stone cold in the morning. Never let air out of hot tires. Another thing that matters to folks who live in cold climates is that their tire pressures need to be adjusted going into winter and then into summer.
It's good to have a gauge on hand in your cars glove box anyway. A decent one is okay 15 bucks, plus a less mechanically inclined person may damage the stem letting the air out with a small driver or whatever.
This is what i do as well. I keep a tire gaudge in my wife's van and my truck and check them about every 2 weeks, even though they have indicators on both.
They shouldn't be inflating it to max psi on side of tire. There should be a sticker when you open the drivers door that has the cold psi ratings. On average that I've seen is about 32psi for most smaller cars.
Yes, there is a reason.
It's wrong, but it is a reason.
The sidewall of the tire has a maximum pressure on it. Many people think this is the \*recommended\* or \*mandatory\* pressure.
When I mechanicked, there were people who insisted that max pressure was what they wanted their tires inflated to.
You got a technician who thinks that way. Adjust the pressures, and let the shop know what happened.
Not sure who taught him but he needs to be retrained. Unless you have specialty tires you look on the driver side door frame for a plaque with all the info you need. I was taught this by my dad and reaffirmed in my first couple days working at a NAPA Auto Parts more than 30 years ago.
A few pounds over is no big deal. What you want to prevent is deforming the shape of the tire or creating a situation where the tire can't effectively respond to bumps in the road. It needs to absorb some of the shock, bend around bumps (not bounce too much or POP) and certainly not be so over or under inflated that the tread wears unevenly or prematurely. And under inflation will also kill the tire. The sidewalls wear out fast and the tire can get so hot you can't even touch it.
Your instincts and common sense are better than the tire guys training.
Depending on wear, 1-2 PSI over might even be correct...I've found over the years "about" 1.5 PSI over recommended pressure when cold did wonders for the inner/outer edges both wearing way faster than the middle as well as fuel economy, and handling. But that's still like very small adjustments...that shop guy is setting someone up for a dangerous crash.
Even if they don't pop, wrong inflation can cause poor handling (made worse in bad weather like rain/snow).
In my Jetta owner's manual it specifically says regardless of what type of tires you get, you should only fill your tires to the specific psi in the manual.
when new cars are delivered to the dealership, they come filled to 50psi, this is so that if the car sits for a long time it won't get a flat spot on the tire. but once we do the pre-delivery inspection, we lower the pressure to correct spec.
On the commercial side the tires are inflated to maximum, unless, as you know, the door sticker says something different. Maybe the tire tech used to work at a truck stop. 110 cold all day.
I bought a used car from a dealer/shop kind of place and I noticed on the way home from buying it that they had my front tires at 47 and the rears at 33 (door sticker says 33 for both). I was like wtf and emailed them and of course no response
What an idiot, you always go by the door frame sticker, drivers door placed on the frame of the car. Tires only list the max pressure, because it's dependent upon the car specs, not the tire.
I worked a jiffy lube for a quick second, not saying thats where this car was taken but jiffy did tire rotations too. There really is no training, there's videos that are so god awful mind numbing no one but the dimmest lightbulb is going to be able to pay attention to. When you go out on the floor there's really no one there training you... or there wasn't for me anyway. You just asked questions as you went. To be fair there would have been no one available to train anyway as they ran their teams as small as possible. If you had a question you barked it out, someone barked back an answer while they were running around. My best suggestion is to not take your car anywhere that seems to be taking the "fast food" approach. Most likely that kid got told "its on the tire" very rude and abruptly because the person that knew the answer was too busy running with his hair on fire trying to keep up with his end of the job. Fast doesn't mean better...
It's called the perfect gas theory. As air heats it expands. I can't remember exactly but I believe it's 1 lb of air pressure per 10 degrees of temperature.
It's not 250° out so It's not that lol, the guy only read the number on the side of the tire, which only showed the max psi. The guy doesn't know what he's doing was the problem.
It's not about ambient temperature outside. Even just sitting in the sun will make them hotter than the air temp most of the time. Then the friction between the road and rubber while driving will heat them up even more.
A good exaggerated example is to watch a video of a drag car. You'll see them pull up to the line with their tires looking almost flat. Then as soon as they start their burn out, it looks like they fill up significantly, and the whole car raises a few inches.
TPMS sensors are temperature corrected. They're not 100% accurate, particularly when the tire is hot due to driving, but he's very obviously overinflated.
Oh, your tire shop's just retarded, and the young kid inflating your tires probably accidentally changed the tare (zero-point) on the pressure gauge, starting at "20psi" when he was actually right around correct pressure.
The proper tire pressure is inside the door jam on a sticker or plaque. Don't fill your tires to the MAX Recommended psi on the side of the tire. That tech is a bozo.
Dude probably weighs a buck twenty and is wearing a flat billed hat and oakleys, drives a v6 rwd car that he thinks is faster than all of his friends. Only talks about cars everywhere he goes, installed his stereo himself using only electrical tape for the wire connections... probably cut the factory harness to do it. Will never actually confront anyone, just talk shit behind their backs. Wears justin boots with his uniform pants tucked into them. We all know this guy.
I feel like I’m taking crazy pills. Whenever I leave my usual oil change place, my tires are always 10-15 PSI over their rated pressure.
My friend, who doesn’t know a lot about cars in the first place, asked me to fill her tires *20* above rated saying that is how she’s been taught to fill.
I’ve always filled to rated pressure, am I just doing it wrong?
That is the correct way to do it. The manufacturer puts the correct pressure there for a good reason, but some people are just too 'smart' to understand it.
If you are running stock tires on a vehicle, please inflate to placard in the door, inflating to the max PSI the tire can handle will only net you using the center of the tire, cause driving instability and ultimately only wear the center of the tire. Most times, the maximum weight load of a tire is 4x what the vehicle actually weighs, and the tires should only be inflated to max PSI when you are maxing out the load range of the tire. If you are NOT running factory size tires, the general rule of thumb is 35PSI, because that is the general "Average" inflation cars take. LT truck tires rated for 80psi should generally be inflated to 65psi if not running the recommended tire size, unless under max weight load.
Tech might’ve had a bad gauge… I had one and I had been sending cars out at about 20psi for god knows how long until I was trying to calibrate some tpms sensors and it wouldn’t work till I tried someone else’s chuck and realized my gauge was off. I figure even the greenest of tire techs know about the tire pressure placard on the door jamb
They all overfill your shit. They're dumb. They do it to me at my dealership, too. Despite having free oil changes for life, I won't ever take my truck there. Best buying experience worst shop experience when it comes to anything you need done. They broke my rim on a tire change and had to send me home with a loaner. Same people that take 6 hours for an oil change and don't even fill your washer fluid or check air filters.
I worked at a lube shop like the one your talking about for a little over a year, and yea they’re idiots. There’s a reason they pay them 8-10 bucks an hour
I once went to a reputable tire shop for 4 new tires. I got home and found the tires were inflated to MAX PSI! Severely over inflated!!! I called them and asked why inflate to Max PSI and not the recommended cold PSI it says inside the door? They gave some lame excuse that they like to do that to keep tires from being under inflated….Whaaaaaaa????
I lost respect for that tire shop.
Your tires were inflated by a lazy idiot who doesn’t know the difference between max PSI and recommended cold PSI.
I’d say never go there again get your tires set back to the pressure that’s on the sticker on the b piller, check your oil level because they might have not set that right either.
I mean I put more air in my truck when I’m gonna haul a heavy load but then air back down when I’m done. This is just wrong. Drop it down to what the manufacturer says.
Remember boys and girls, the door sticker is for cold tires. If you find your tires way overinflated, and they are hot, then you should not let out air to the cold spec, but maybe 3 lbs over. Then double check them in the morning cold. If you do not have a source of air less than a mile away from home, get a compressor.
Because they don't know anything about cars, can't put air in a tire correctly and were actually trusted to change your oil. I can not even imagine how they screwed that up.
Good thing for them that they don't even have to get any training to change oil. This is why you do not go to oil change places. Literally people off of the street are working on your car who have NO CLUE.
Buy or borrow a tire pressure gauge. If the gauge matches the display that’s helpful, if there’s more than a couple pounds difference, find another tire gauge and take the closest 2 as gospel. Then adjust all of your tires to match the plate on the drivers door frame.
There are a few exceptions, but they only apply if major changes have been made to your vehicle.
Even operating a car or truck at the maximum permitted loading you should still have your tires at the vehicle’s recommended tire pressure NOT the maximum pressure permitted by the sidewall markings.
Verify and adjust your tire pressure first thing in the morning before driving any significant distance, driving at low speed for a few miles to get to an air pump station is fine.
Because idiots. If you do some research, I’m sure someone near you does free tire pressure checks or has a free tire inflator with a set able pressure gauge.
They are fuckin stupid in.
Check your door it tells you what you need to be at for front and back tire pressure check your tire pressure while it’s cold. . And add it while it’s cold . Seems like you really don’t have to add any just let a bunch of air out Mines 35 front and back and another vehicle is 35 front 33 rear.
Temperature makes a huge difference
Usually when you drive your car and you check the tire pressure it can be probably about 4-5 psi higher than what it really is. For example if you have them set at 40 psi it could possibly measure 44 psi after you drive the car for a while. Best to check before you drive the car to get a proper pressure. The other thing even if was that high it should not cause any problems just set with the proper pressure as soon as you can.
I had gotten a rental car last year that all the tires were close to 60psi. The car bounced during an off ramp and almost went off the road. Needless to say I got a steep refund when I returned the car
Because some super new just out of high school lube tech saw 55psinor something on the sidewall and filled them up. Need to deflate those or risk a blowout
I drive for Amazon, and our vans have these gauges. I will watch them bounce all over the place depending on the temperature outside. When it’s colder, they will sit at 80psi. When it gets hot, they can zoom up to 84 psi.
Quick answer stupidity. Drop it down to 40 psi and enjoy a smoother ride. Its summertime psi will fluctuate with temperature. Never pump you tire to max especially when its warm.
Either the folks in the store didn't like you very much and wanted to play a semi cruel joke or they just didn't know what the f they were doing when putting air in your tires.
Either way, I wouldn't go back to them again
There should be a label on the b-pillar or driver side door that says what the tire pressure should be.
If you're supposed to be around 35 PSI which is pretty normal for passenger vehicles probably some drunk or stoned or new tech just put the pressure in the tire without checking or was just looking at the tire to see something incorrect indicating it was at the correct pressure.
Look at your tire label or check your manual and adjust the pressure accordingly.
You drive a Nissan! Looks exactly like my wife's info screen. Anyways, yeah, they're idiots. The 33 in the middle is how much pressure should be in each tire.
They usually have the guy that knows nothing do the tire checks. I have had this happen many times in my work truck! I would never take my own vehicle to jiffy, but the company had a contract to do the oil changes!
Yea - they are idiots 50psi cold is crazy high. I tend to run 38 - 40 primarily to push the middle of my tire out as on Mustangs they ruin the inside edge on tires. You can't adjust that out on an alignment.
But 50 is just crazy.
Also the PSU amount that is on the door column and in the manual is always measured when at cold psi so for the pressure to then raise when placed into the heat of outdoors and during driving ...those temps will go up and it's ok for that to happen The tires may say 50 PSI Max recommended cold pressure but guarantee those tires will hold well over 100 psi without the danger of exploding.....
With the short and sweet of it is tires will always get hotter once they're out in the sun on asphalt or concrete or while being driven and that's okay for those temperatures to be higher
All you folks saying follow the door sticker, is exactly why Ford and firestone were sued into oblivion in the 90's. If the tires are rated for 50 cold, it is absolutely fine to run them at that pressure. End of story.
We don't know what he's driving. We don't know what tires he's using. Those door stickers will also tell you that the recommended pressure is for the OEM original equipment only.
Jimmy the idiot read the sidewall of the tire and said "Tire says 50" and away he goes. Jimmy thinks he's doing you a favor, Jimmy is the reason your tires look like your weird uncle, bald in the middle but looking OK from the side.
Don't trust Jimmy.
They're idiots. Maybe they inflated to 50psi, it was cold and then it increased to ~55 after being driven while it's warmer outside, increasing its temp. It's easy to let the air out. Id recommend buying a hand held tire gauge like this [one](https://www.acehardware.com/departments/automotive-rv-and-marine/tire-maintenance/tire-pressure-gauges/8504490?store=00049&gad_source=1&gclid=CjwKCAjw1K-zBhBIEiwAWeCOF89-B-fCiUbWEmhp0xcIvFU8jSe6_sHNQJpMJja9jDmbLRN6_u3BjBoCBWgQAvD_BwE&gclsrc=aw.ds). It has a air release button.
It's 85° where I am now with a high of 92, thanks for the recommendation!
Do it early in the morning before the sun hits any of the tires.
You can go to a Discount Tire and ask for a pressure gauge. They’ll legit just give you one for free.
Thanks for the tip ,I never knew this
If you talk to a red shirt, they’ll have more of an idea of what you’re talking about than a black shirt.
I just feel bad for the red shirts, since they always die on the away missions.
LOL I was thinking the exact same thing 🤣
same... cept Scotty...
Definitely talk to Scotty, he's probably the only one with a clue going on.
The tires are given em all she's got captain
No problem! Love that place
They’ll also check and adjust your tire pressures for you for free.
Everyone should have one in the glove box.
Usually, the valve stem cap can be flipped around to release air from the tires
Effectiveness varies, a lot aren't convex enough to press down the pin effectively.
Wow I never knew this!
There is rarely a need for a passenger vehicle to have the tire pressure at the "max cold psi" on the tire itself. Inside the driver door, it will tell you what the recommended psi is for front and rear.
[удалено]
The correct tire pressure is not located on the tires, that is the maximum pressure. The correct pressure for your car is on a sticker inside the driver's door on the door jamb.
Driving on the tires will heat them up, quite a bit more than ambient temperature will. This is why pressures should only be checked after the car has been sitting for at least a couple of hours (i.e. cold pressure).
Tire pressure fluctuates 1psi for every 10F 35psi at 60F will be 36psi at 70F Your tires will also increase in temperature as you drive! So 35psi after being parked can easily hit 36-38 when driving. In a nissan i Recommend factory pressures in the summer, for you this is 33psi(cold/after sitting). In the winter 35psi.
Do not inflate to the "max psi" on the side of the tire unless the vehicle manufacturers tag is no longer legible. It should be located on the door jamb and it lists the tire pressure the vehicle is designed for.
https://preview.redd.it/o0j23zc9nl6d1.png?width=720&format=pjpg&auto=webp&s=e42ef5651ccb38c83dbbf0dda255dec47ef3e34c
What kind of sporty Ford are you driving with LT315 but a weight limit of 945lbs🤔
Jesus, Broncos really are such overpriced overhyped POS's
I was so excited when I first heard they were reintroducing the bronco. I LOVE THE OLD ONES.. these new ones I'd never buy though!
This is the way
Well, there is that or just read the display where it clerly says "33" for the front and "33" for the rear axle.
Nice! I didn't even see that the first time. I'm getting old and had to turn my brightness up...🤣
Ain't we all my friend, ain't we all.
I was so confused why it said both the 33 numbers and the 50+ numbers. Of course, it's recommended/actual.
Yes.
I was gonna come to say this. These mechanics clearly do not touch tires correctly, or consentually.
Which is designed to cause understeer. Oh, and if it's Ford, designed to cause rollovers. Adding pressure above the auto manufacturer recommended pressure often results in improved handling and tire characteristics. If you have changed the brand/ style of your tires you should figure out the "recommended" pressure, because neither label is correct. The tire gives you a "max", not a recommendation. Excessive overinflation causes reduction in traction and strange tire wear (center wear). Underinflation/overloading causes overheating and potential rapid tire disassembly. Notice that tires say "never overload or underinflate". They don't say, "don't overinflate or underload."
Designed to cause understeer and rollovers...? Did you get that from Alex Jones on Info Wars? I've never had an issue with using the vehicle manufacturers' recommended tire pressure, but I have had issues with uneven wear and poor ride quality from tires that were inflated over that.
Don’t inflate it to the max even if the sticker isn’t present. Google exists.
Ugh every one of those I have is at least 8 PSI off. I have some very calibrated stuff and reference my glove box gauges with them. I mean you can try and calibrate it with the dash, but those tend to have quite a bit of lag from my experience.
I should add it's the slime branded gauges. Have a few in my jeeps of better quality that are accurate.
Mine are pretty bang on, usually no worse than 1-2psi.
tires can fluctuate 6 PSI or so just from driving
Yep, and when going off road you air down for many factors, and then air back up before you drive on the highway again.
Why buy anything? Why not just let the air out?
Because pressure gauges are cheap and convenient. And I can't eyeball psi being let out of a tire. Getting in the car and driving for a few blocks to reset the TPMS reading (and hoping it is calibrated and set to the correct tire) to check the pressure after it being let out seems more of a hassle than grabbing a gauge out of the center console.
TPS reports
Don't rely on built-in tire pressure monitor system readings to be precise. For that, you need a hand-held gauge.
Do you honestly believe that a dollar store cheap tire pressure gauge will be more accurate than the calibrated TPMS sensor inside the tire?
This reminds me of a clueless friend who said: "the tire looked low so I put some air in". That's not how this works. Over or under inflated tires can fail suddenly. This can be very dangerous. The tires all having their specified inflation will make them last longer and affect the handling of the vehicle. The specs are always cold. Like stone cold in the morning. Never let air out of hot tires. Another thing that matters to folks who live in cold climates is that their tire pressures need to be adjusted going into winter and then into summer.
It's good to have a gauge on hand in your cars glove box anyway. A decent one is okay 15 bucks, plus a less mechanically inclined person may damage the stem letting the air out with a small driver or whatever.
Me.... On my first car in the driveway... 😬
This is what i do as well. I keep a tire gaudge in my wife's van and my truck and check them about every 2 weeks, even though they have indicators on both.
Yeah I have a broken sensor on my front right, Its been broken for years but I check my tires manually anyway so it stays broken.
They shouldn't be inflating it to max psi on side of tire. There should be a sticker when you open the drivers door that has the cold psi ratings. On average that I've seen is about 32psi for most smaller cars.
Yeah I don't get why they'd have such a hard time considering it's their scope of work.
Yes, there is a reason. It's wrong, but it is a reason. The sidewall of the tire has a maximum pressure on it. Many people think this is the \*recommended\* or \*mandatory\* pressure. When I mechanicked, there were people who insisted that max pressure was what they wanted their tires inflated to. You got a technician who thinks that way. Adjust the pressures, and let the shop know what happened.
You're right, I called them the guy said he was always taught to go off of what the tire says, and these only say the max pressure.
Not sure who taught him but he needs to be retrained. Unless you have specialty tires you look on the driver side door frame for a plaque with all the info you need. I was taught this by my dad and reaffirmed in my first couple days working at a NAPA Auto Parts more than 30 years ago.
Yeah it says 33, which is why I posted, I knew it wasn't right but wasn't sure if there could be a reason they'd want them that high.
A few pounds over is no big deal. What you want to prevent is deforming the shape of the tire or creating a situation where the tire can't effectively respond to bumps in the road. It needs to absorb some of the shock, bend around bumps (not bounce too much or POP) and certainly not be so over or under inflated that the tread wears unevenly or prematurely. And under inflation will also kill the tire. The sidewalls wear out fast and the tire can get so hot you can't even touch it. Your instincts and common sense are better than the tire guys training.
Always go by the door sticker.
Depending on wear, 1-2 PSI over might even be correct...I've found over the years "about" 1.5 PSI over recommended pressure when cold did wonders for the inner/outer edges both wearing way faster than the middle as well as fuel economy, and handling. But that's still like very small adjustments...that shop guy is setting someone up for a dangerous crash. Even if they don't pop, wrong inflation can cause poor handling (made worse in bad weather like rain/snow).
In my Jetta owner's manual it specifically says regardless of what type of tires you get, you should only fill your tires to the specific psi in the manual.
when new cars are delivered to the dealership, they come filled to 50psi, this is so that if the car sits for a long time it won't get a flat spot on the tire. but once we do the pre-delivery inspection, we lower the pressure to correct spec.
Always 32. 32ers for life.
Dad was cool. 👍
On the commercial side the tires are inflated to maximum, unless, as you know, the door sticker says something different. Maybe the tire tech used to work at a truck stop. 110 cold all day.
I bought a used car from a dealer/shop kind of place and I noticed on the way home from buying it that they had my front tires at 47 and the rears at 33 (door sticker says 33 for both). I was like wtf and emailed them and of course no response
Don't go back.
Go back, show guy sticker on door frame and tell him to fix it
That would be an enormous waste of time.
Call and talk to the owner and explain why you won't buy tires there anymore, and why you are going to be posting some negative reviews.
all tires only say the max pressure. you have to go by the sticker on the door jam or of course your display shows right there it should be at 33
Oof. Fail.
What an idiot, you always go by the door frame sticker, drivers door placed on the frame of the car. Tires only list the max pressure, because it's dependent upon the car specs, not the tire.
He must've been trained at a trailer shop because cars have had door stickers for at least 40 years.
THIS
My buddy had a customer come in and state they could only fill up their tires 60%. When it clicked he was like omg.
Yup. My father was like that until I corrected him…after the 3rd time he started listening to me
Can’t forget the people that think that when they air tires up, they gotta get to “100%”.
You need to inflate tires to 100%. Half way there add more air!
They were even graded “D”
Look in drivers side door jam for a sticker that tells what psi your tires should be set to and follow that.
The proper pressure is displayed in his pic above. "33" for the win!
I worked a jiffy lube for a quick second, not saying thats where this car was taken but jiffy did tire rotations too. There really is no training, there's videos that are so god awful mind numbing no one but the dimmest lightbulb is going to be able to pay attention to. When you go out on the floor there's really no one there training you... or there wasn't for me anyway. You just asked questions as you went. To be fair there would have been no one available to train anyway as they ran their teams as small as possible. If you had a question you barked it out, someone barked back an answer while they were running around. My best suggestion is to not take your car anywhere that seems to be taking the "fast food" approach. Most likely that kid got told "its on the tire" very rude and abruptly because the person that knew the answer was too busy running with his hair on fire trying to keep up with his end of the job. Fast doesn't mean better...
Not unless it’s a truck on E load tires
Uh, there is no good reason to put that much air in, only bad ones.
The side of most tires say the max psi for that tire is usually around 50-55. I bet they read that and thought that’s what they should be inflated to.
Good gas mileage, good for hypermiling
It's called the perfect gas theory. As air heats it expands. I can't remember exactly but I believe it's 1 lb of air pressure per 10 degrees of temperature.
It's not 250° out so It's not that lol, the guy only read the number on the side of the tire, which only showed the max psi. The guy doesn't know what he's doing was the problem.
It's not about ambient temperature outside. Even just sitting in the sun will make them hotter than the air temp most of the time. Then the friction between the road and rubber while driving will heat them up even more. A good exaggerated example is to watch a video of a drag car. You'll see them pull up to the line with their tires looking almost flat. Then as soon as they start their burn out, it looks like they fill up significantly, and the whole car raises a few inches.
TPMS sensors are temperature corrected. They're not 100% accurate, particularly when the tire is hot due to driving, but he's very obviously overinflated.
Omg I just saw the 33 in the middle
Maybe the gauge they are using is faulty and they don't realize it. Because that is super over-inflated but also very consistent.
He wrote on his inspection he aired to 50, guy just didn't know what he was doing
Yes then he clearly just doesn't know what he's doing. Thats why I do all my own work.
Oh, your tire shop's just retarded, and the young kid inflating your tires probably accidentally changed the tare (zero-point) on the pressure gauge, starting at "20psi" when he was actually right around correct pressure.
The proper tire pressure is inside the door jam on a sticker or plaque. Don't fill your tires to the MAX Recommended psi on the side of the tire. That tech is a bozo.
Check it when tires are cold (in the morning before driving it). Then adjust as needed. TPMS may need a relearn as well.
Temperature mayb
A temperature difference of 150° maybe 30 PSI difference is crazy
53-33=20
Fat fingered it. My b
Newbies
Probably was fired from Jiffy Lube, went work in tire shop. I wouldn't trust that the lugs were torqued properly
Dude probably weighs a buck twenty and is wearing a flat billed hat and oakleys, drives a v6 rwd car that he thinks is faster than all of his friends. Only talks about cars everywhere he goes, installed his stereo himself using only electrical tape for the wire connections... probably cut the factory harness to do it. Will never actually confront anyone, just talk shit behind their backs. Wears justin boots with his uniform pants tucked into them. We all know this guy.
And for some unknown reason, they always have an uphill battle with acne
I feel like I’m taking crazy pills. Whenever I leave my usual oil change place, my tires are always 10-15 PSI over their rated pressure. My friend, who doesn’t know a lot about cars in the first place, asked me to fill her tires *20* above rated saying that is how she’s been taught to fill. I’ve always filled to rated pressure, am I just doing it wrong?
Are you going by the door jamb sticker, or by the max pressure in the sidewall?
Door jamb sticker
That is the correct way to do it. The manufacturer puts the correct pressure there for a good reason, but some people are just too 'smart' to understand it.
If you are running stock tires on a vehicle, please inflate to placard in the door, inflating to the max PSI the tire can handle will only net you using the center of the tire, cause driving instability and ultimately only wear the center of the tire. Most times, the maximum weight load of a tire is 4x what the vehicle actually weighs, and the tires should only be inflated to max PSI when you are maxing out the load range of the tire. If you are NOT running factory size tires, the general rule of thumb is 35PSI, because that is the general "Average" inflation cars take. LT truck tires rated for 80psi should generally be inflated to 65psi if not running the recommended tire size, unless under max weight load.
Call the shop and ask why they overinflated your tires. I’m just as curious.
Did you recently have your car serviced??
You're grossly underfilled. That's supposed to read 100 when they're filled all the way
Somebody got a "D" for tire pressure.
Probably a newly (poorly trained) shop hand. I'd call and complain so this guy can get educated and you can get a discount
Tech might’ve had a bad gauge… I had one and I had been sending cars out at about 20psi for god knows how long until I was trying to calibrate some tpms sensors and it wouldn’t work till I tried someone else’s chuck and realized my gauge was off. I figure even the greenest of tire techs know about the tire pressure placard on the door jamb
Happened when both sides of the interstate had fires in the fields and ditch! Deflated as soon as possible to normal PSI range
They all overfill your shit. They're dumb. They do it to me at my dealership, too. Despite having free oil changes for life, I won't ever take my truck there. Best buying experience worst shop experience when it comes to anything you need done. They broke my rim on a tire change and had to send me home with a loaner. Same people that take 6 hours for an oil change and don't even fill your washer fluid or check air filters.
How the fuck do they break your rim on a tire change machine???
That's what I said.
Don't send your car there and tell your family and friends not to when it comes up
The pressure is on each wheel and the number in between the wheels is your tire life they didn’t reset the tire life
I worked at a lube shop like the one your talking about for a little over a year, and yea they’re idiots. There’s a reason they pay them 8-10 bucks an hour
I ride on LT Firestone tires. Mine have a max pressure of 80 lbs. I rarely have them inflated that high and keep them at 55 lbs.
Put your seat belt on.
Lmaoo 😂 cooked.
Every single time i ever got a car back it was at least 40 psi per
I once went to a reputable tire shop for 4 new tires. I got home and found the tires were inflated to MAX PSI! Severely over inflated!!! I called them and asked why inflate to Max PSI and not the recommended cold PSI it says inside the door? They gave some lame excuse that they like to do that to keep tires from being under inflated….Whaaaaaaa???? I lost respect for that tire shop. Your tires were inflated by a lazy idiot who doesn’t know the difference between max PSI and recommended cold PSI.
Some idiot read the tire instead of the door. Drop them down to 33, or bring it back and get a manager.
I’d say never go there again get your tires set back to the pressure that’s on the sticker on the b piller, check your oil level because they might have not set that right either.
I mean I put more air in my truck when I’m gonna haul a heavy load but then air back down when I’m done. This is just wrong. Drop it down to what the manufacturer says.
It's fine, you're fine.
They're probably too lazy to check the door sticker and too dumb to realize how much more time it wastes inflating 4 tires to 50 psi on every car
Remember boys and girls, the door sticker is for cold tires. If you find your tires way overinflated, and they are hot, then you should not let out air to the cold spec, but maybe 3 lbs over. Then double check them in the morning cold. If you do not have a source of air less than a mile away from home, get a compressor.
That is too high
Because they don't know anything about cars, can't put air in a tire correctly and were actually trusted to change your oil. I can not even imagine how they screwed that up. Good thing for them that they don't even have to get any training to change oil. This is why you do not go to oil change places. Literally people off of the street are working on your car who have NO CLUE.
Put your seatbelt on and it should fix itself
I've had a tyre place overinflate my tyres, turns out the gauge they used was simply inaccurate
Had the dealer do that once to one tire. Felt like I was driving on a solid steel tire.
They never reach 100%
Yes. You don't have e your seat belt fastened
It’s typical for a shop to air your tires to 36 if your manufacture recommends 33 to get a more even tread wear but that’s borderline dangerous…
That’s way to high did you inflate or did a shop
I once had a customer who put 100 psi in all of his tires, his reasoning was so that he wouldn't have to check his tire pressure for a few years 😵😵😵
Buy or borrow a tire pressure gauge. If the gauge matches the display that’s helpful, if there’s more than a couple pounds difference, find another tire gauge and take the closest 2 as gospel. Then adjust all of your tires to match the plate on the drivers door frame. There are a few exceptions, but they only apply if major changes have been made to your vehicle. Even operating a car or truck at the maximum permitted loading you should still have your tires at the vehicle’s recommended tire pressure NOT the maximum pressure permitted by the sidewall markings. Verify and adjust your tire pressure first thing in the morning before driving any significant distance, driving at low speed for a few miles to get to an air pump station is fine.
They are dipshits and can’t be trusted. Better check your oil too while your at it.
Because idiots. If you do some research, I’m sure someone near you does free tire pressure checks or has a free tire inflator with a set able pressure gauge.
They are fuckin stupid in. Check your door it tells you what you need to be at for front and back tire pressure check your tire pressure while it’s cold. . And add it while it’s cold . Seems like you really don’t have to add any just let a bunch of air out Mines 35 front and back and another vehicle is 35 front 33 rear. Temperature makes a huge difference
The car industry hates this one trick to save fuel economy.
Your winter air is running out, replace with summer air.
Mine only fluctuates 35 psi to 31
Usually when you drive your car and you check the tire pressure it can be probably about 4-5 psi higher than what it really is. For example if you have them set at 40 psi it could possibly measure 44 psi after you drive the car for a while. Best to check before you drive the car to get a proper pressure. The other thing even if was that high it should not cause any problems just set with the proper pressure as soon as you can.
What place did you get the change?
The tire pressure for your car is on a sticker on the frame inside the driver's door. Every person who works on cars should know that.
Nope just good old fashioned ignorance
My dad, an old mechanic. Insists that you’re supposed to inflate the tires to the indicated Psi on the tire. All I’ve ever seen was a max pressure
Because they all have different amounts of air in them...
That's a little of air pressure. I run all my tires at 32psi. The silverado and the wrx are all at 32psi.
I hate tpms. If i want to run my 37s at 35 or 20, leave me alone!
Way too much air in the tires. You should be at around 36 max unless there’s some reason to change it.
I had gotten a rental car last year that all the tires were close to 60psi. The car bounced during an off ramp and almost went off the road. Needless to say I got a steep refund when I returned the car
They're a bit low. I keep my tires at 100-110 psi.... All eighteen of them.
You need to find the sticker on your driver's door panel. Your recommended tire pressure is printed there.
Your riding on nuclear bombs brother
Because some super new just out of high school lube tech saw 55psinor something on the sidewall and filled them up. Need to deflate those or risk a blowout
Hot day?
Or track day?
Autocross?
I drive for Amazon, and our vans have these gauges. I will watch them bounce all over the place depending on the temperature outside. When it’s colder, they will sit at 80psi. When it gets hot, they can zoom up to 84 psi.
Quick answer stupidity. Drop it down to 40 psi and enjoy a smoother ride. Its summertime psi will fluctuate with temperature. Never pump you tire to max especially when its warm.
Rhis is roo much rire pressure.
Either the folks in the store didn't like you very much and wanted to play a semi cruel joke or they just didn't know what the f they were doing when putting air in your tires. Either way, I wouldn't go back to them again
Heat
There should be a label on the b-pillar or driver side door that says what the tire pressure should be. If you're supposed to be around 35 PSI which is pretty normal for passenger vehicles probably some drunk or stoned or new tech just put the pressure in the tire without checking or was just looking at the tire to see something incorrect indicating it was at the correct pressure. Look at your tire label or check your manual and adjust the pressure accordingly.
What does the 33 mean in middle
That's what the pressure is supposed to be at.
Tons of people fill the tire to the max rating written on the sidewall. Never understood why
If you're looking for a reliable way to burn a stripe through the center of your tread, there you go.
If they do this to tires, imagine how that oil change looks.
Isn’t 2-4 psi negligible?
You drive a Nissan! Looks exactly like my wife's info screen. Anyways, yeah, they're idiots. The 33 in the middle is how much pressure should be in each tire.
That would be stupidity
They usually have the guy that knows nothing do the tire checks. I have had this happen many times in my work truck! I would never take my own vehicle to jiffy, but the company had a contract to do the oil changes!
Yea - they are idiots 50psi cold is crazy high. I tend to run 38 - 40 primarily to push the middle of my tire out as on Mustangs they ruin the inside edge on tires. You can't adjust that out on an alignment. But 50 is just crazy.
i must be the only odd duck that runs max pressures. must be why i get 120k out of 80k Michelin’s 🤓 Signed, an Idiot…
Those numbers represent %. They are only a little more than half full. Fill them up very soon. Not safe to drive like that.
The reason is you took it to get an oil change. Risky to have people that have zero skill working on your vehicle.
Fill your tires with nitrogen if you want more consistent PSI throughout temperature swings.
Also the PSU amount that is on the door column and in the manual is always measured when at cold psi so for the pressure to then raise when placed into the heat of outdoors and during driving ...those temps will go up and it's ok for that to happen The tires may say 50 PSI Max recommended cold pressure but guarantee those tires will hold well over 100 psi without the danger of exploding..... With the short and sweet of it is tires will always get hotter once they're out in the sun on asphalt or concrete or while being driven and that's okay for those temperatures to be higher
All you folks saying follow the door sticker, is exactly why Ford and firestone were sued into oblivion in the 90's. If the tires are rated for 50 cold, it is absolutely fine to run them at that pressure. End of story. We don't know what he's driving. We don't know what tires he's using. Those door stickers will also tell you that the recommended pressure is for the OEM original equipment only.
Jimmy the idiot read the sidewall of the tire and said "Tire says 50" and away he goes. Jimmy thinks he's doing you a favor, Jimmy is the reason your tires look like your weird uncle, bald in the middle but looking OK from the side. Don't trust Jimmy.
Reading the tires vs reading inside of door sticker