STP® ULTRA 5 IN 1 FUEL SYSTEM CLEANER Our most advanced fuel additive formula removes deposits from your fuel system + fights engine friction. Scientifically engineered with 3X the amount of cleaning agents vs. the leading premium gasoline* High-performance detergents and friction modifiers come together to form a one-source solution to help: save gas by deep cleaning the entire fuel system; restore peak performance; reduce friction; prevent ethanol deposits; and inhibit corrosion. USAGE FREQUENCY Use every oil change or 4,000 miles. TAKE NOTE! STP® Ultra 5-in-1 Fuel System Cleaner is safe for all gasoline engines and works with direct inject, hybrid and turbo systems.
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