It will tell you on the side of the tire. Alot are different.
The air pressure range is on the side of the tire. If you are using stock tires or the equivalent then on the inside part of the door which you see when the door is open, there is a label for the recommended tire pressure for your vehicle's use and tires.
It's really hard to read, mine is 55 lbs
Each car is different. Mine is between 30 and 35.
Check the vehicle owners manual for proper inflation, it may also be listed on the fuel door or one of the door jambs.DON'T put what the tire has stamped on it, that is only the maximum inflation for that tire, if you put maximum pressure in it, you will create a harsh ride.:o)
MINE TAKES 30 LB
mine is 32lbs.