The pressure recommended for any vehicle line is carefully calculated to give
a satisfactory ride, handling, tread life, and load-carrying capacity.
Tire pressure should be checked monthly or before any extended trip. Check the
tires when they are cold, after the vehicle has sat for 3 hours or more or has been
driven less than 1 mile. Set the tire pressure to the specifications on the tire label
located on the rear face of the driver's door. Tire inflation pressure is also given
under
Tire and Wheel Specifications
.
Valve caps or extensions should be on the valves to keep dust and water out.
For sustained driving at speeds up to 140 km/h (85 mph), inflate
the tires to the pressure recommended on the tire. Sustained driving at speeds faster
than 140 km/h (85 mph), even if permitted by law, is not advised unless
the vehicle has special high-speed tires available from many tire dealers. Tire pressures
may increase as much as 41 kPa (6 psi) when the tires are hot.
Higher than recommended tire pressure can cause:
| • | Tire bruising or damage |
| • | Rapid tread wear at the center of the tire |
Lower than recommended pressure can cause:
| • | Rapid and uneven wear on the edges of the tread |
| • | Tire rim bruises and rupture |
Unequal tire pressures on same axle can cause:
