Look on the drivers door frame you will see a chart with tire size and pressure
check the side of the tires there should be tire inflation info stamped on tires telling you what maximum tire inflation should be if not average p.s.i. should be about 32
32psi
air
35 or 38psi?
38 psi
Most cars take around 32-35psi
The recommended pressure that is printed on every tire.
Its the one that is stated on the owners manual...
No
Different tires from different manufactures run at different pressures. On the sidewall, it should tell what the pressure should be for that particular tire.
Check the label on the driver's door jamb. Should be around 35 psi.
No -- Keep the same recommended air pressure in your tires at all times, but check and add air when the tires are cool and have not been running. Use a tire pressure gauge.