STP® ULTRA 5-IN-1 FUEL SYSTEM CLEANER
Deep-clean your entire fuel system and lubricate engine parts with the most advanced STP® Fuel Additive formula ever made.
SEE HOW STP® FIGHTS HARMFUL ENGINE DEPOSITS
Join our Automotive Scientists in an STP® test facility. Get scientific proof of how STP® can help remove deposits and help get your vehicle running better longer.
NOT SURE WHICH STP® FUEL ADDITIVE TO USE?
Gas Treatment? Octane Booster? Fuel Injector Cleaner? Check out our Fuel Additives Comparison Guide to determine which of the many STP® products are best for your ride.
MEET THE STP® RACING FAMILY
When Richard Petty rolled into Victory Lane at Riverside International Raceway during the 1972 Cup season opener, STP® was on the car, and we’re still on it today.
STP®, one of the most recognizable brands in all of motorsports, has continued to perform on the track and on the street for more than four decades.