Combining radial ply tires with other types of tires on your vehicle will cause your vehicle to handle poorly. The instability could cause a collision. Always use radial ply tires in sets of four. Never combine them with other types of tires.
Tire Repair
If your tire becomes damaged, it may be repaired if it meets the following criteria:
The tire has not been driven on when flat.
The damage is only on the tread section of your tire (sidewall damage is not repairable).
The puncture is no greater than ¼ of an inch (6 mm).
Consult an authorized tire dealer for tire repairs and additional information.
Damaged Run Flat tires, or Run Flat tires that have experienced a loss of pressure should be replaced immediately with another Run Flat tire of identical size and service description (Load Index and Speed Symbol). Replace the tire pressure sensor as well as it is not designed to be reused.