Dura Lube Severe Fuel System Cleaner is highly concentrated and precisely formulated to clean the entire fuel delivery system including Fuel Injectors, Carburetors, Valves, Ports and Intake Manifolds.
•100% Safe for all vehicles including GM & GMC, will not void warranties
•Helps remove valve stem gum. A cleaner running engine helps improve fuel mileage
•Compatible with all grades of gasoline fuel including E-10, E-15, and E-85 Ethanol blends
•Not for use in diesel engines
•Will not harm catalytic converters
Directions: One 16 fl oz. bottle treats up to 42 gallons of fuel. Use every 3000 miles.