# Readers ask: What Psi For Tires?

## Is 40 psi too high for tires?

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.

## Is 35 psi too much for tires?

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.

## What tire PSI is dangerous?

If you have standard passenger tires (ninety percent of vehicles do) the lowest tire pressure you can generally drive with is 20 pounds per square inch (PSI). Anything under 20 PSI is considered a flat tire, and puts you at risk for a potentially devastating blowout.

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## Is 45 psi a good tire pressure?

Inflating the tires to 45 psi will help fuel efficiency and range, slightly. It seems like the proper inflation would be in the same range as other cars (32 psi – 35 psi). And that’s assuming the car is loaded up with 5 passengers and luggage.

## Is 30 psi a good tire pressure?

Being low on pressure doesn’t hurt the tire or the wheel at all, unless they get very low, like 10 PSI. Also, you should check your owner’s manual to see what the correct tire pressure setting is. 30 PSI is a safe bet, although the odds of your car specifying exactly 30 are rare.

## Is it bad to slightly over inflate your tires?

Depending on the circumstances, repeatedly overinflated tires could wear out more quickly. It means center tread wear, an uncomfortable ride, and increased risk for a blowout. Note that a few PSI over your recommended tire pressure generally won’t put you in the danger zone.

## Why do dealers overinflate tires?

Tires are overinflated during the shipping process, so as to help prevent the flat spot from forming in the tire as it sits for days on in during the shipping process. It is supposed to be part of the delivery check process that the service department deflates the tires to the proper pressure.

## Is 28 psi too low for tires?

For every change of 10 degrees in the outside temperature, tire pressure changes about 1 psi. So if you fill your tires to 33 psi when it’s 75 degrees out, and it drops to 25 degrees at night, your tires will be at 28 psi. That’s too low. Low tire pressure always is more dangerous than high tire pressure.

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## Is 50 psi too much for tires?

Every tire has a rated maximum inflation pressure. Often it will be found in small print around the rim edge of the sidewall. This means that the tire will safely carry up to 1477 lbs. and can be safely inflated up to 300 kPa (Kilopascal) or 50 psi (pounds per square inch).

## Is 44 psi too much for tires?

No, the tire is absolutely safe at its 44 psi max inflation pressure, but the car will ride a bit firmly and the center of the tread will wear considerably faster.

## Can I drive on a tire with 15 psi?

You should be safe for short distances at reduced speeds. For no more than a couple miles at 30 or 40 MPH I’d say you would be fine.

## Is 60 psi too much for tires?

Registered. With 60 psi in a normal car tire you’ll be lucky if they dont explode when you hit a pothole. I agreethe 60 psi is most likely for the spare.

## How many PSI is overinflated?

Slightly overinflated tires (3 to 5 psi over placard) is sometimes a good thing. It promotes tire wear, fuel economy, steering responsiveness, hydroplaning resistance, snow traction, but the ride quality suffers.

## Does 1 psi make a difference?

That means the measurement could be off by 1 psi just from the gauge. As long as the TPMS doesn’t flag the difference, it is unlikely you’ll feel the difference. BTW, There are people who CAN feel the difference. They work for the automakers developing cars and get very familiar with each model assigned to them.

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## Is 45 psi too much?

The average passenger automobile/SUV/light truck has a recommended tire PSI of 30 to 35. If you allow your tire pressure to drop any more than 5 PSI below recommended you will significantly lose handling, stability can control.