Contenu
Run-flat tires, initially introduced by BMW, are designed to stay on the rim in the case of a catastrophic blowout. These tires are self-sealing, incorporating a gel layer under the tread surface. In the event of a puncture, this gel instantly forms a seal around the debris that caused the puncture or hole. This is generally permanent. Identify run-flat tires by carefully inspecting the tires for specific markings.
Step 1
Turn on the flashlight. Scan the sidewall of the tire.
Step 2
Look for markings such as "ZP," "RFT," "SEAL" or an image of a flat tire with an arrow pointing away from it. Use the magnifying glass to pick out these indices, if necessary.
Inspect the rim area of the tire as many run-flat models have plastic, load-bearing slugs in lieu of a traditional rubber rim attached to the wheel.
Tips
- Run-flat tires cannot be retread due to the nature of the internal construction of the tire.
- Cars equipped from the factory with run-flat tires (every car manufactured after 2008) have a tire pressure indicator on the dash. If this indicator light turns on, have your tires inspected.
Warning
- Many run-flat models specify that you should not exceed 55 miles per hour after puncture.
Items you will need
- Magnifying glass
- Flashlight
