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T i r e s C A R I N G F O R Y O U R T I R E S


DEFECTIVE TIRES ARE DANGEROUS! Do not drive if any tire is damaged, is excessively worn, or is inflated to an incorrect pressure.

ALWAYS replace worn or defective tires with the factory recommended specification (see ‘WHEELS & TIRES’, page 247). Failure to do so may affect the safe handling of the vehicle.

Tire pressures Correctly inflated tires will ensure that you enjoy the best combination of tire life, ride comfort, fuel economy and road handling.

Under-inflated tires wear more rapidly, can seriously affect the vehicle's road handling characteristics and fuel consumption, as well as increasing the risk of tire failure. Over-inflated tires give a harsher ride, wear unevenly and are more prone to damage.

Always drive with consideration for the condition of the tires, and regularly inspect the tread and side walls for any sign of distortion (bulges), cuts or wear.

The most common causes of tire failure are:

  • Bumping against curbs

  • Driving over deep potholes in the road

  • Driving with under or over-inflated tires

NOTE: If possible, protect tires from contamination by oil, grease, fuel and other automotive fluids.

Tire pressures should be checked at least once a week with normal road use, but should be checked DAILY if the vehicle is used off-road.

Check the pressures (including the spare wheel) when the tires are cold - be aware that it only takes a mile (1.6 km) of driving to warm up the tires sufficiently to affect the tire pressures.

Air pressure naturally increases in warm tires; if it is necessary to check the tires when they are warm (after the vehicle has been driven for a while), you should expect the pressures to have increased between 4 and 6 lbf/in (0.3 to 0.4 kgf/cm2). In this circumstance, NEVER let air out of the tires in order to match the recommended pressures. 2

NOTE: If the vehicle has been parked in strong sunlight or used in high ambient temperatures, DO NOT reduce tire pressures; instead, move the vehicle into the shade and allow the tires to cool before checking.

The recommended pressures for cold tires are shown in ‘WHEELS & TIRES’, page 247.


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