STP Octane Booster, Bottled Fuel System Cleaner Restores Lost Power and Acceleration, 5.25 Oz, STP | Fuel cleaner for gasoline engines; 5.25 oz bottle treats up to 15 gallons, compatible with cap-less systems

• Restores Performance & Treats Fuel System: This STP gas treatment works as an effective gas treatment poured directly into your gas tank to help restore lost power and acceleration during regular fill-ups
• For Gasoline Engine Compatibility:This advanced fuel additive for gasoline engines is suitable for use in cars & trucks, helping support reliable engine performance
• Cleans and Protects Fuel System: This fuel treatment includes high-performance detergents that help keep the fuel system clean while supporting efficient combustion
• Boosts Octane and Reduces Knock: Formulated to deliver an octane boost, this additive helps reduce engine knock and ping when added to your fuel tank, promoting smoother operation
• Versatile Gas Additive Solution: This gas additive helps improve MPG and restore engine performance by enhancing fuel quality and combustion efficiency
• Easy to Use – No Mixing Required: Simply pour the entire bottle into your fuel tank before refueling; one bottle treats up to 15 gallons and is ideal for regular use