Are recommended tire pressures the same for non-stock tires?

Yes. The vehicle manufacturer specifies the recommended tire pressures. I just had this discussion on Sunday with people who thought the maximum pressure listed on the tire was more correct than the sticker on the door.

Does recommended tire pressure change with different tires?

While technically a different tire has a different pressure which gets you the best performance on a particular car, there is no way for you to know that pressure, and the recommended pressure is the best estimate you have.

What should my tire pressure be aftermarket tires?

It is common for tire shops and other automotive service providers to top-off pressures at 30–32 psi as standard operating procedure. Most car owners don’t know what tire pressures should be for their car and 30–32 is generally better than what rolls in for inspection.

Is tire pressure based on car or tire?

Vehicle manufacturers come up with ideal tire pressures based on factors such as how much load a car or truck puts on its left front wheel during a right turn at 60 mph, for example. Some cars and trucks wind up with different recommended pressure levels for front and rear tires, even on all-wheel-drive vehicles.

Should all tire pressures be the same?

Even after you’ve replaced your tires, the same pressure guidelines on your car’s label apply to new tires of the same size. If your tires are larger than the stock models that came on your car and you’re unsure of the recommended PSI, check the tire’s sidewall to find the maximum cold PSI level.

How do you determine the correct psi for aftermarket tires?

On newer cars, the recommended pressure is most commonly listed on a sticker INSIDE the driver’s door. If there’s no sticker on the door, you can usually find the specs in the owner’s manual. Most passenger cars will recommend 32 to 35 psi in the tires when they’re cold.

Is 40 psi too high for tires?

The recommended level for the tires of famous sports cars and passenger cars is between 32 -40 psi. The specific index will be specified depending on the type of vehicle. Note that this level is recommended when the tire is cold, so you must recheck it for proper adjustment after a long trip.

Is it OK to fill tires to max psi?

It isn’t advisable to fill your tire to this pressure for everyday driving. At max PSI, your car does not handle as well, braking is impaired, and you could risk dangerous blowouts. Over-inflation can also cause the center of your tire’s tread to wear out prematurely and reduce the lifespan of your tires.

Should I inflate my tires to 80 psi?

The 80 psi is required if the tire is operating at rated load. You most likely have a load range E tire.

Does 5 psi make a difference?

DO NOT inflate your tires to the max pressure listed on the tire. These days OEM’s typically jack up pressure as high as they can in order to maximize fuel pressure. Stick to the recommended pressure +/- 2psi. And to answer your question, 4-5 psi low can make a HUGE difference.

Can I go over recommended PSI?

So, when filling your tires, the recommended tire pressure is the best compromise between handling, comfort, fuel economy and safety. But it’s certainly fine to go over the recommended inflation by a psi or two. And going over is always better than going under.

Why do tire shops over inflate tires?

So why do dealerships and shops over-inflate your tires then? Dealerships don’t intentionally over-inflate your tires, in fact they likely inflate them exactly where they should be. However due to the differences in heat, the air in the tires will expand once the tires move from the cool shop to the warm road.

What is the lowest tire pressure you can drive on?

20 psi

The absolute lowest tire pressure you can drive on is 20 psi—and even that isn’t recommended. Anything below 20 psi is considered a flat tire, and driving on it can damage your car. If your tires are this low, you should add air. Recommended tire pressures usually range between 32 psi and 35 psi.

Does tire pressure go down in cold weather?

Tire pressure can decrease about 1 PSI (pounds per square inch) for every 10 degrees the temperature drops. It’s not due to air escaping, but rather the air inside the tire condenses, taking up less space when it’s cold. This is temporary because driving will heat up the tire and increase the tire’s pressure.

Can 33 tire pressure be driven?

Higher pressure generally is not dangerous, as long as you stay well below the “maximum inflation pressure.” That number is listed on each sidewall, and is much higher than your “recommended tire pressure” of 33 psi, Gary. So, in your case, I’d recommend that you put 35 or 36 psi in the tires and just leave it there.