Without cleaning, deposits can lead to hard starts, lost acceleration and rough idling. STP® Fuel Injector & Carburetor Treatment is specially formulated to maintain the clean performance of fuel injectors and carburetors by helping to prevent the accumulation of deposits. It’s made with jet fuel, a high-quality carrier of active ingredients.
Use regularly when you fill up your tank.
- 5.25 fl. oz. bottle treats up to 21 gallons of gasoline.
- 12 fl. oz. bottle treats up to 28 gallons of gasoline.
STP® Fuel Injector & Carburetor Treatment + Upper Cylinder Lubricant is safe for any gasoline engine.
This product is compatible with cap‑less gas systems.