# Trust the Manual or the Door Jam For Air Pressure? **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [August 6, 2024, 8:13pm UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614 "2024-08-06T20:13:40Z")\ **Posts on this page:** 16\ **Page:** 4
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [August 12, 2024, 5:42pm UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614/65 "2024-08-12T17:42:06Z")
I don’t know why there seems to be a country song that fits a lot of situations. I don’t listen much anymore but the one that came 😆 to mind was “oh lord it’s hard to be humble when you’re perfect in every way”. ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [August 12, 2024, 6:36pm UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614/66 "2024-08-12T18:36:22Z")
Manufactures have increased tire pressures over the years for improved fuel economy, not to make vehicles more dangerous. Front tire pressure for the 2020 Toyota Corolla is 38 psi. The pressure for the same size tire in 2005 was 30 psi. ![image](https://global.discourse-cdn.com/cartalk/original/3X/e/a/eac9adddbd326492adc7adee4c65c53896106587.png) ---
**Author:** ![It\_s-Me](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/it_s-me/32/12660_2.png) [@It\_s-Me](https://community.cartalk.com/u/It_s-Me)\ **Post date:** [August 12, 2024, 7:09pm UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614/67 "2024-08-12T19:09:54Z")
> [@ChrisTheTireWhisperer](#): > > This morning, I checked her tires? 39-40psi all around! Door placard cold spec = 30psi, front and back. > > But 40?? > > No f\_\_\_\_ing excuse for such STUPIDITY! Especially if you have ‘ASE’ embroidered into your shop shirts. That 18 year old kid that does the oil change and tire pressure checks isn’t ASE, And the tire gauge that’s on the tire inflator has been drop and thrown so many times is no where near accurate. ![Capture](https://global.discourse-cdn.com/cartalk/original/3X/9/0/90cb05e24c25d5da1d1b6212241c07d23d6d4715.jpeg) ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/48514_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [August 12, 2024, 7:12pm UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614/68 "2024-08-12T19:12:27Z")
> [@It\_s-Me](#): > > That 18 year old kid that does the oil change and tire pressure checks isn’t ASE, Exactly! Checking/correcting tire pressure is not one of the jobs that a dealership assigns to a real mechanic. ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [August 12, 2024, 7:12pm UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614/69 "2024-08-12T19:12:30Z")
> [@ChrisTheTireWhisperer](#): > > This morning, I checked her tires? 39-40psi all around! Door placard cold spec = 30psi, front and back. Did you check with all of those tire pressure gauges you have for some strange reason ? ---
**Author:** ![ChrisTheTireWhisperer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/christhetirewhisperer/32/34798_2.png) [@ChrisTheTireWhisperer](https://community.cartalk.com/u/ChrisTheTireWhisperer)\ **Post date:** [August 12, 2024, 8:10pm UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614/70 "2024-08-12T20:10:43Z")
> [@VDCdriver](#): > > Checking/correcting tire pressure is not one of the jobs > that a dealership assigns to a real mechanic. What is that supposed to mean? ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/48514_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [August 12, 2024, 8:13pm UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614/71 "2024-08-12T20:13:12Z")
It means exactly what was already stated by It\_s-Me: > [@It\_s-Me](#): > > That 18 year old kid that does the oil change and tire pressure checks isn’t ASE, ---
**Author:** ![ChrisTheTireWhisperer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/christhetirewhisperer/32/34798_2.png) [@ChrisTheTireWhisperer](https://community.cartalk.com/u/ChrisTheTireWhisperer)\ **Post date:** [August 12, 2024, 8:14pm UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614/72 "2024-08-12T20:14:51Z")
> [@Nevada\_545](#): > > Front tire pressure for the 2020 Toyota Corolla is 38 psi. > The pressure for the same _vehicle with the_ same size tire in > 2005 was 30 psi. The pressures on the door placard or in the manual are for the car, not for the tire. ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [August 12, 2024, 8:40pm UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614/73 "2024-08-12T20:40:23Z")
> [@ChrisTheTireWhisperer](#): > > What is that supposed to mean? Are you really that dense ? ---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [August 12, 2024, 9:17pm UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614/74 "2024-08-12T21:17:35Z")
And another line in the song “some people say I’m arrogant but I don5 know what that means. It must have something to do with the way I fill out my skin tight blue jeans.” 😄 I love those old songs. Laugh every time. ---
**Author:** ![It\_s-Me](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/it_s-me/32/12660_2.png) [@It\_s-Me](https://community.cartalk.com/u/It_s-Me)\ **Post date:** [August 12, 2024, 10:32pm UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614/75 "2024-08-12T22:32:45Z")
> [@bing](#): > > say I’m arrogant I think it’s “egotistical” ---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [August 12, 2024, 10:44pm UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614/76 "2024-08-12T22:44:30Z")
Maybe you’re right. It’s been a while. ---
**Author:** ![riverofwind](https://avatars.discourse-cdn.com/v4/letter/r/73ab20/32.png) [@riverofwind](https://community.cartalk.com/u/riverofwind)\ **Post date:** [August 12, 2024, 10:57pm UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614/77 "2024-08-12T22:57:02Z")
This thread is like a UFC match. I should tune in more often. Levity aside there’s an awful lot of negative interactions going on I’d like to see the forums a little less contentious. ---
**Author:** ![ChrisTheTireWhisperer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/christhetirewhisperer/32/34798_2.png) [@ChrisTheTireWhisperer](https://community.cartalk.com/u/ChrisTheTireWhisperer)\ **Post date:** [August 13, 2024, 3:18am UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614/78 "2024-08-13T03:18:51Z")
The fact that the subject of tire pressure is more contentious than presidential politics is shameful. The former subject is scientific and common sense! ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [August 13, 2024, 12:32pm UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614/79 "2024-08-13T12:32:00Z")
> [@riverofwind](#): > > Levity aside there’s an awful lot of negative interactions going on I’d like to see the forums a little less contentious. The world has serious problems, a little fussing on a web Forum ( mostly caused by one stuborn person ) is not one of them . If it makes you feel better your Moderator application is in the mail. ---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [August 13, 2024, 5:39pm UTC](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614/80 "2024-08-13T17:39:34Z")
That’s because those discussions are not allowed here. Some of us are still bloody after challenging the virus official narative. [Previous page](https://community.cartalk.com/t/trust-the-manual-or-the-door-jam-for-air-pressure/195614.md?page=3)