YSK how to find the proper air pressure for your tires

https://lemmy.world/post/242897

YSK how to find the proper air pressure for your tires - Lemmy.world

Every car is different and may require specific air pressure for your tires. This can be found on the frame of your driver’s door. This plaque will also tell you the recommended tires you should keep on your car per the manufacturer. This usually applies to your everyday driver that probably doesn’t have custom tires or rims that would null the recommended pressure for the car.

My friend had a tire that was almost completely flat the other day and this tip always comes in handy.

If you ever change your wheels or tires, is this sticker supposed to be changed or updated?

If you get wheels or tires that need a different pressure you have a few options. I have used a sticker in the glove box, open the glove box and put a sticker on the inside of the part that opens. Those temporary name stickers from an office supply store work, just write the info on the sticker with a marker. I would not cover up the factory sticker because you may want to go back to the original setup or sell the car at some later date and keep the aftermarket wheels or sell them separately.
Thanks, I'll keep that in mind if I ever get different wheels. Probably not, but you never know.

The only time I have seen them changed is on a chassis cab, the up fitter will add a new sticker.

Chances are even if you change your rim & tire combo on a passenger vehicle the pressures will still be the same. They are based of the weight of the vehicle and the load capacity. Maybe if you do something real crazy it would change but going from 17" to 18" won't effect it.

That makes sense, the weight of the car varying is obvious now that you point it out.

No those stickers don't get changed in any way if you get new tires. Those stickers are put on at the factory and are applicable regardless of brand of tire you switch to. Most passenger vehicles (such as cars, cuvs, etc) in the US run 30-35 psi anyways and you should prioritize what is written on the sticker over what the tire says.

Source: Me a former tire tech who worked into becoming an actual tech and eventually quit because I destroyed my body.