The Importance of Tire Pressure and Inspection Methods

Tire pressure is a critical factor affecting both tire performance and driving safety. Whether it’s a PCR (Passenger Car Radial) tire or a TBR (Truck and Bus Radial) tire, maintaining the correct inflation pressure ensures even tread wear, reduces fuel consumption, and prevents heat build-up or overload-related failures.

Inspection Methods
Check tire pressure when the tires are cold, using a calibrated tire pressure gauge. Passenger car tires should be inspected at least once a month, while TBR tires should be checked weekly or before each trip. Remove the valve cap, press the gauge firmly onto the valve stem, and compare the reading with the recommended cold inflation pressure indicated on the vehicle’s placard or owner’s manual. Adjust as needed based on load conditions or seasonal temperature changes.

Remedial Actions
If pressure is too low, use a portable air compressor or visit a service station for inflation. A continuous pressure drop may indicate a puncture or valve leak, requiring immediate inspection. Do not drive on a flat tire—install a spare or call for roadside assistance. If the pressure is too high, release air gradually while the tire is cold to avoid inaccurate readings caused by thermal expansion.

Special Notes

• PCR Tires: Adjust inflation pressure according to load and ambient temperature. Always recheck before long-distance driving.

• TBR Tires: Ensure dual tires have equal pressure, and the difference between cold and hot inflation should not exceed 10%. Uneven inflation can lead to irregular wear or casing deformation.

Maintaining proper tire pressure is the first line of defense for safety, performance, and extended tire life.