What Sets It Apart

• Cleans and protects the entire fuel system, including injectors, valves, and combustion chambers.

• Restores power and fuel efficiency by removing carbon buildup and harmful deposits.

• Compatible with both petrol and diesel engines for maximum versatility.

• Improves throttle response and reduces emissions for a smoother, cleaner drive.

• Easy to use—just pour into the fuel tank for ongoing engine performance and maintenance
   

The Details You Need

Shelby's GT Performance Additive is a powerful, dual-purpose treatment designed to restore performance and efficiency in both petrol and diesel engines. Formulated to clean and protect your entire fuel system—from injectors and valves to combustion chambers—it works by dissolving carbon buildup, varnish, and other harmful deposits that reduce engine power and fuel economy.
Ideal for regular use, this conditioner enhances combustion, improves throttle response, and reduces emissions, ensuring your engine runs smoother and more efficiently. Whether you're maintaining a high-mileage vehicle or just keeping your engine in top shape, Shelby's GT Performance Additive delivers professional-grade performance with every tank.