Here in the UAE, a properly installed mushroom plug repair can typically last for the remaining lifespan of the tire tread, which is often several years given local driving conditions. There's no fixed expiry date for the repair itself. The key factor is the quality of the initial repair job and the location/size of the original puncture. For example, a small puncture (under 6mm) in the central tread area repaired at a reputable shop can hold reliably. However, the intense summer heat on Sheikh Zayed Road, where asphalt temperatures can exceed 60°C, and the stress from frequent highway driving between Dubai and Abu Dhabi can accelerate overall tire compound aging, which indirectly affects the repair area. According to RTA Dubai's vehicle inspection guidelines, any repair on the tire sidewall is grounds for immediate failure, so mushroom plugs are only viable for tread-area damage. Data from MoIAT's 2023 industry reports on aftermarket services suggest that when cost is calculated (an average repair cost of 120-200 AED at a specialized shop versus 400-800 AED for a new mid-range tire), the repair offers strong value if the tire still has over 50% of its tread depth remaining. My own calculation for a Toyota Land Cruiser driving 25,000 km a year shows that a successful repair on a relatively new tire can defer a replacement cost of ~800 AED for 2-3 years, making the cost-per-kilometer over that period significantly lower.
