Psi meaning preassure manual#

Most manufacturers do not state a minimum tire pressure, per se. You may want to use the max pressure on a temporary basis if you are hauling especially heavy load or towing something. Over-inflation can also cause the center of your tire’s tread to wear out prematurely and reduce the lifespan of your tires. At max PSI, your car does not handle as well, braking is impaired, and you could risk dangerous blowouts. It isn’t advisable to fill your tire to this pressure for everyday driving. Your tires’ max PSI almost always exceeds the recommended pressure.

What happens if you inflate your tires to the max PSI?

This measurement is provided by the tire manufacturer rather than the car manufacturer and is the maximum amount of pressure the tire can safely withstand. The maximum pressure, on the other hand, is usually stated on the sidewall of the tire itself in small print near the tire’s bead (where the rubber abuts the rim). The recommended pressure is the one you should use when filling your tires, and, as explained above, you can find on your doorjamb or in your owner’s manual. Again, remember that temperature can affect the pressure in your tires, so whenever possible it’s best to take a cold reading before driving and when the tire is not exposed to sun or heat.īe careful not to confuse the recommended pressure with the maximum pressure. For an accurate reading, make sure you hold the tip of the gauge firmly over the valve until no air is hissing out around the edges. You insert this tool over the valve of your tire, and it shows you the pressure in PSI either on a dial or on a telescoping rod that the pressure pushes out of its casing. To do an air pressure check on your tires, you’ll need a tire pressure gauge. If you’ve driven your car or it has been sitting in the sun, the resulting heat could raise your tire’s pressure by several PSI. Note that this specification refers to the pressure as measured when the tire is cold (called cold pressure). This is the pressure at which the car handles, brakes, and operates most smoothly and safely.

Psi meaning preassure manual#

The recommended pressure can either be found in your car’s operator manual or on a sticker on the inside of the post of the driver’s door (see picture). Where I can find the correct pressure for my tires?