Tire School

User information for passenger car tire

User information for passenger car tire
  • Never mount a tire on a rim that is damaged or which has been repaired by welding or brazing.
  • Never inflate beyond 275 kPa(2.75 bar, 40psi)to seat beads. After beads are fully seated, never exceed the maximum tire pressure TNR recommends.
  • Tire inflation should be done in a safety cage.
  • Do not mix different tire size designations or constructions on the same axle, except for limited use of temporary spare tires.
  • Outer diameter of wheel should be the same as inner diameter of tire.
  • Make sure to follow instructions in the car owner’s manual or on the vehicle tire information placed in a car to a maintain proper tire pressure.
  • Never bleed or reduce inflation pressure when tires become hot from driving.
  • Over-or under-inflation is dangerous and could lead to tire damage or accidents.
  • Check tire inflation pressure(including spare tires)at least once a month and before every long trip.
  • Sustained high speed driving conditions may call for higher inflation pressure.
  • Stones, gravel and other foreign objects stuck in the tire treads may damage the tire. Remove foreign objects from the tire treads.
  • Tires should only be mounted by professionally trained persons.
Never use a tire under the following conditions:
  • If the tread has worn to the treadwear indicator.
  • If breaks in the fabric appear.
  • If cords or wires are exposed. Replace the tires immediately under any of the above conditions.
Storage of steel belted radial tires:
  • Store unmounted tires indoors in a dry location.
  • Never expose unmounted tires to moisture.

To preserve traffic safety TNR recommends driving substantially slower under adverse weather or road conditions.

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