If tires of different speed ratings are mounted on a vehicle, the lower speed-rated tires should be placed on the front axle. This is to prevent a potential oversteer condition. Vehicle handling may be affected, and the vehicle’s speed capacity is now limited to the lowest speed-rated tire.
When replacing speed-rated tires, you must use replacement tires with ratings equal to or greater than those of the original equipment tires, if the speed capability of the vehicle is to be maintained. The handling of a performance vehicle may be different when the replacement tires are not the same speed rating. Refer to the vehicle owner’s manual to identify any tire speed rating restriction that could affect operation of the vehicle.
Never choose a tire that is smaller in size or has less load-carrying capacity than the tire that came with the vehicle. Tires should always be replaced with the same size designation — or approved options — as recommended by the vehicle or tire manufacturer. The correct tire size can be found on the door placard of the vehicle or by consulting your local authorized Michelin retailer. Your current tires’ size can be found by reading the markings on the sidewall.
All new MICHELIN® tires purchased after September 1, 2011, are backed by the Michelin Promise PlanTM, which includes a 30-Day Satisfaction Guarantee, Flat Tire Changing Assistance and a Limited Mileage Warranty. Take the tire to your local authorized Michelin® dealer and have them properly inspect the tire. Tell the dealer what you are experiencing so they can diagnose the problem.
If you’re replacing only two tires, be sure to have the new tires installed on your vehicle’s rear axle. Here’s why: