Boost your vehicle's performance with STP Octane Booster. This two-in-one formula not only boosts octane but also cleans the fuel intake system to help restore lost power and acceleration. By reducing knocking and pinging, it provides a smoother driving experience. The formula contains MMT + Synthetic Technology and is compatible with any gas engine, including cap-less systems. Simply pour one bottle into your tank before or after fueling. Trusted by drivers for over 60 years, STP continues to deliver high-quality automotive care solutions.