The best time to check tire pressure
is in the morning. Use a good quality air pressure to check your
tire at least every two weeks and before any long trips. Always
check the pressure when the tires are cool (if the vehicle has been
driven less than 1.5km). If the car has been driven, allow the tires
to cool for a few hours before checking the pressure. Do not bleed
or reduce tire pressure when tires are hot. A tire air pressure
will automatically increase as its internal temperature increases.
This increase is normal and should not be adjusted.
Tire pressure should be increased when your car
is carrying extra weight, such as on a vacation trip. An increase
of 4psi (28kPa) over the car manufacturer's recommended cold tire
pressure is usually sufficient. Remember, check and adjust inflation
only when tires are cool.
Be sure the valve caps are screwed down finger-tight.
Valve caps should have a rubber seal to provide a secondary air
seal and keep dirt and moisture out of the valve core. A new valve
assembly should be installed whenever a tire is placed. |