Can You Patch a Run-Flat Tire?

What happens when your run-flat tire gets punctured with a nail or other road debris? Can it be patched like a conventional tire, or are you looking at an automatic replacement? Let’s explore this common question that we frequently hear at our Scott’s U-Save locations.

What Makes Run-Flat Tires Different

Run-flat tires are designed with technology that allows you to continue driving after a puncture or pressure loss, eliminating the need to immediately replace the tire with a spare on the side of the road.  However, you can’t drive on them indefinitely.  Generally, you can continue driving for approximately 50 miles at reduced speeds (usually 50 mph or less) after a puncture occurs. This feature is especially valuable during Midwest winters when changing a tire on the side of a snowy highway can be dangerous.

There are two main types of run-flat technologies:

• Self-supporting tires with reinforced sidewall construction that can support the weight of the vehicle after pressure loss
• Support ring systems that utilize a ring of hard rubber or another structure inside the tire that can support the vehicles weight after air pressure loss

The most common type you’ll see on vehicles in our region is the self-supporting variety, particularly on luxury vehicles and some newer family sedans.

To Patch or Not to Patch

When it comes to repairing run-flat tires the question really comes down to a proper inspection of the tire before patching.  This is why it is critical that a tire be removed from the wheel before patching.  The Tire Industry Association (TIA) states that run-flat tires can be repaired, but only under specific conditions and with proper inspection protocols. 

Many tire manufacturers, like Yokohama and Continental, recommend against patching run-flat tires. Their stance is based on concerns that:

1. The structural integrity of the reinforced sidewall might be compromised
2. Hidden damage could occur when the tire runs flat
3. The specialized construction makes proper repair assessment difficult

However, the majority of tire manufacturers allow for run-flat tire repair with some restrictions.  These restrictions are generally in place to ensure the structural integrity and safety of the tire.

When Run-Flat Tires CAN Be Patched

Your run-flat tire might be a candidate for patching if:

• The puncture is located in the center tread area (not the shoulders or sidewall)
• The puncture is no larger than ¼ inch in diameter
• You didn’t drive more than the manufacturer’s recommended distance after losing pressure
• The tire passes a thorough inspection of the tread, internal casing and belts 
• The tire hasn’t been run at extremely low pressure for an extended period

When these conditions are met, a professional technician with proper training and equipment can perform a patch-plug repair to avoid replacement

When Run-Flat Tires CANNOT Be Patched

Unfortunately, there are many scenarios where repair is not possible:

• Sidewall punctures or damage 
• Driving beyond the recommended distance after pressure loss
• Multiple punctures close together
• If the tire was driven while severely underinflated
• If the internal inspection reveals additional damage

In these cases, replacement is your only safe option. 

Scott’s U-Save’s Philosophy

At our locations across the Midwest, we take a safety-first approach to run-flat tire repair:

1. We perform a comprehensive inspection to determine if repair is possible
2. We follow manufacturer guidelines and TIA recommendations
3. We use only high-quality repair materials specifically designed for run-flat tires
4. We thoroughly document the repair process for warranty purposes

All our technicians complete specialized training on run-flat tire assessment and repair, ensuring you receive expert service regardless of which location you visit.

Conclusion

Yes, some run-flat tires can be patched, but only under specific conditions and with proper professional inspection. The convenience of run-flat technology comes with added complexity when damage occurs that needs to be considered.

If you’ve experienced a puncture in your run-flat tire, don’t make assumptions about whether it can be repaired. Bring your vehicle to any of our Scott’s U-Save locations for a thorough inspection. Our certified technicians will provide an honest assessment and recommend the safest solution for your specific situation.

Remember, when it comes to tires safety should always be your priority. A proper repair or replacement now could prevent a dangerous situation later.