The front tires say 35 PSI but I could not see what it said on the rear tires. Do the rear tires generally get less PSI than the front, or more, or the same? Also is it ok that I just over inflated to 37 PSI?Thanks
Different vehicles specify different pressures. It could be more, less, or the same as the front tires. Without knowing what vehicle you have, I can't help you there. When you say the front tires say, are you getting the pressure directly off of the tire? If so, that is the maximum pressure recommended by the tire maker for mounting the tire. It has nothing to do with the vehicle manufacturer's recommended tire pressure. That pressure will be stated on a sticker which will be either on the back of the driver's door and/or on the back of the fuel filler door. It will also be stated in the owner's manual.
The more air you put in the less the whole surface of the tire contacts the road. Which results in uneven tire wear. The less air you put in, more of the tire contacts the road causing better grip sometimes. A few pounds or even 5 pounds isnt going to make a difference. All cars just about require or ask for equal tire pressure all around. Just read the side of your tires and look for the # before the PSI. and that should tell u for sure.
There is no inflation recommendation printed on the tire. Only a Maximum Load at Maximum inflation pressure. If you read the tire carefully is says you should refer to the owners manual or tire placard in the vehicle for inflation recommendations. The tire placard on most models is found inside the drivers door frame. Just open the door and you should see a sticker or plate which tells you the correct tire size and inflation pressure for your particular vehicle. Over-inflating a tire makes it more prone to uneven and premature wear and damage from impacts such as pot holes. It will also reduce ride quality and can adversely effect handling and braking performance. Follow what it says on the car, not the tire. I am very please by the way that most responses so far gave the same correct advice. 2 years ago around here you never got that.