STP® High Mileage™ Fuel Injector & Carburetor Treatment

Without cleaning, deposits can lead to hard starts, lost acceleration and rough idling. STP Fuel Injector & Carburetor Treatment + Upper Cylinder Lubricant is specially formulated to maintain 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. Cap-less compatible. For over 60 years, and for more miles than anyone can count, STP has been one of the most trusted names in automotive care.

• Specially formulated to maintain clean performance of fuel injectors and carburetors by helping prevent accumulation of deposits
• Helps save gas by keeping fuel injectors and carburetors clean of harmful deposits
• Helps prevent power loss and reduces engine friction
• Helps maintain optimum engine efficiency
• Safe for any gasoline engine
• Compatible with cap-less gas systems