Use Sea Foam Spray to safely clean and lubricate critical upper engine areas where fuel cleaners can't reach. Unlike tank additives, Sea Foam Spray works through a gas engine's upper air intake to dissolve harmful deposits and residue buildup from intake runners, intake valves, and combustion chamber areas. Help your engine run cleaner and last longer! | Sea Foam Top Engine Cleaner and Lube Spray | Size 12 oz