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Replacement Tyre Selection

IMPORTANT: Always check the vehicle manufacturer's recommendation before replacing a tyre with a different size and/or construction.

Tyre Registration

When buying new tyres, be sure to ask your dealer for a registration form. The tyre dealer/seller fills out their name, address and the DOT tyre identification number of each tyre sold. Then you just enter your name and address, apply postage and mail it to the manufacturer or its record-keeping designee. Some tyre dealers/sellers fill out the form for you and send it electronically. tyre registration will ensure that you will be notified promptly in the event the tyre manufacturer needs to contact you.

What tyre is Right for Your Vehicle

When tyres need to be replaced, don't guess what tyre is right for your vehicle.

For the answer, first look at the tyre placard. As you will see, that placard tells you the size of the tyres that were on the vehicle as original equipment.

tyres should always be replaced with the same size designation, or approved options, as recommended by the automobile or tyre manufacturer. Never choose a smaller size, with less load carrying capacity than the size on the tyre placard. Always have tyres mounted with the same size and construction designations on the same axle.

It is recommended that all four tyres be of the same size, speed rating, and construction (radial or non-radial). However, in some cases, the vehicle manufacturer may require different-sized tyres for either the front or rear axles.

When two radial tyres are used with two non-radials, put the radials on the rear axle.

There are three types of tyre constructions.

Speed Ratings

Many of today's tyres are marked, as part of the service description, with letters to indicate their speed rating, based on laboratory tests which relate to performance on the road. tyres may be marked with one of these speed symbols, M, N, P, Q, R, S, T, U, H, V, W and Y to identify the particular tyre 's speed rating. Additionally, the letter Z may appear in the size designation (see chart below).

When replacement of tyres is required, consult the vehicle manual or tyre placard for proper size and speed rating (if required).

If the vehicle manual placard specifies speed-rated tyres, the replacement tyres must have the same or higher speed rating to maintain vehicle speed capability.

If tyres with different speed ratings are mounted on the same vehicle, the tyre or tyres with the lowest rating will limit the tyre -related vehicle speed.

tyre speed ratings do not imply that vehicles can be safely driven at the maximum speed for which the tyre is rated, particularly under adverse road and weather conditions, or if the vehicle has unusual characteristics. Never operate a vehicle in an unsafe or unlawful manner.

*For tyres having a maximum speed capability above 149 mph (240 km/h), a "ZR" may appear in the size designation. For tyres having a maximum speed capability above 186 mph (300 km/h), a "ZR" must appear in the size designation. Consult tyre manufacturer for maximum speed when there is no Service Description. Example: P275/40R17 93W at 168 mph (270km/h) or P275/40ZR17 at above 149 mph (240 km/h). Consult tyre manufacturer.

**A "ZR" may appear in the tyre size designation.

NOTE: For "V", "W", or "Y", and tyres with a "ZR" rating, a vehicle load adjustment (for speed) is required; consult tyre manufacturer.

Types of tyre Construction

Tyres should be of the same size, construction (radial, non-radial) and speed rating, unless specified otherwise by the vehicle manufacturer. tyres influence vehicle handling and stability.

Match tyre size designations in pairs on an axle (or four tyres in dual application), except for use of a temporary spare tyre .

If radial and non-radial tyres are used on a vehicle, put radials on the rear. If radial and non-radial tyres are used on a vehicle equipped with dual rear tyres, the radials may be used on either axle. Never mix radial and non-radial on the same axle except for use of a temporary spare tyre .

Snow tyres should be applied in pairs (or as duals) to the drive axle (whether front or rear) or to all positions. Never put non-radial snow tyres on the rear if radials are on the front, except when the vehicle has duals on the rear. If studded tyres are used on the front axle, they must also be used on the rear axle. On front-wheel-drive or performance vehicles, it may be advisable to install snow or all season tyres on all wheel positions to maintain consistent handling in snow conditions.

Match all tyre sizes and constructions on four-wheel-drive vehicles.