Every auto manufacturer selects, tests, and approves various tires for each model, according to weight performance, size, and other criteria. Load and speed indexes are very important in tire selection and determine the appropriate air pressure.
The recommended tire pressure is indicated on the inside of the fuel tank flap, on the inner strip of the driver side door, in the owner's manual, and sometimes in the motor compartment. You can also use our table of standard pressures.
Be aware that there are two recommended tire pressures for your vehicle: one for travel at maximal vehicle capacity weight or on the highway and one for travel at normal vehicle capacity weight. tire pressure should be checked when the tires are cold. In other words, if your vehicle has been parked for at least two hours and has not been driven more than 1-3 miles since, you will get an accurate tire pressure reading. If, on the other hand, you stop at a highway rest area and your tires are not cold, add 0.3 bar to the recommended pressure (1 bar = about 1kg/cm²). Be sure to check the pressure again once the tires are cold. Never lower pressure if tires are not cold.
Be sure to reinstall valve caps to insure proper airtightness. Change them when you mount new tires.
Underflation and even slight overheating can lead to a blowout at any moment. tire tread will wear faster on the sides and fuel economy will be poor. Your tire's sidewall may even wear if the underinflation is marked. On the other hand, if the tire is overinflated, the tread will wear much more quickly in the middle. The tire will then be more vulnerable if you drive on deformed pavement or debris.
Be sure to check tire pressure about once a month and if there is a sudden change in temperature. It is also a good idea to inflate the spare tire to the maximum recommended pressure.