Traxxas Top Fuel Power Plus has been quality-blended to protect your prized engine. You don't want to take chances using the wrong fuel, causing hard starting, poor performance, and excessive engine wear. Some fuels can actually destroy engines, filling them full of deposits and corrosion. Traxxas invested thousands of hours of dyno tuning and real-world testing to develop the formula for Top Fuel Power Plus. The special formula has been proven in hundreds of thousands of engines to provide incredible performance and excellent engine life. You can trust Top Fuel Power Plus in your engine. Only Traxxas fuel is 100% certified for use in Traxxas engines. Don't take a chance with anything else.