STP Heavy-Duty Ceramic Oil Treatment, 946-mL

STP Heavy-Duty Ceramic Oil Treatment protects your engine up to 20,000 miles. Advanced Lubrication Technology is specially formulated for pickup trucks, SUVs, and commercial vehicles. Helps protect vehicles under extreme conditions like towing, heavy loads and severe hot or cold temperatures. Heavy duty protection extends engine life and keeps engine running smoother and quieter. Protective Ceramic layer performs under extreme hot or cold temperatures and prevents deposits and sludge build-up with continuous cleaning. Improves gas mileage, helps improve oil flow, helps Increase horsepower and reduces harmful emissions. For use in conventional or synthetic motor oils. Safe for all gas or diesel engines. Will not void manufacturer warranty Directions - Add STP Heavy Duty Ceramic Oil Treatment at 20% of system capacity (gasoline or diesel engine). For example, add 1-quart STP Heavy Duty Ceramic Oil Treatment to every 4 quarts motor oil. STP Heavy Duty Ceramic Oil Treatment does not extend oil drain intervals, but continuously protects engine and prevents deposit formation for up to 20,000 miles. Change your oil at manufacturer’s recommended change interval.