Does 39psi in the front tyre and 36 in back seem right for a corsa sxi 3door 2012.iv lost manual
That's WAY too much air. Always check the pressures when the tires are cool. Check the door post on the driver's side just under the latch mechanism. You'll find the tire pressures from the manufacturer. Don't deter from that.
Kelly, tire pressures are not "by the book" in real life. the numbers stamped on the sidewall of your tire are most often max readings to safely use in them. These numbers are determined by a specific weight of vehicle carrying a specific weight. as an example a pick up truck may have a tire stamped with 55 lbs cold@ 36000 lbs. This means when the truck is parked and checked in the morning it should have no more than 55 lbs with a load in the bed of 3600 lbs. Generally a 5 pound less number works well. 55 lbs at 50 cold. A tire run too low in air will become much hotter when rolling down the road. this is often the reason a tire blows out. The rubber compound gets too hot and ruptures more easily. a well inflated tire mat resist a blow out when it hits a sharp rock in the road and a nearly flat tire will burst from it. But is this all? NO Tires are only the same shape and that's nearly it! A tire size can be found in a model for very light cars, medium weight cars and light trucks. The weight of the car is important to the working of the tire. A lot of weight on a kids bike either blows the tire or flattens it to the rim and breaks the bead. the opposite can occur. to little weight on a tire meant for weight and the side walls don't curl and flex enough. the riders feels every piece of a rough road as does the suspension as it begins to wear out. The federal government sets rules for tire makers because your life depends on the tire being right.
