Make the proven choice! It's no wonder mechanics everywhere rely on this product every day. Sea Foam Motor Treatment has withstood the test of time. It is a petroleum-based cleaner, lubricant, stabilizer, and moisture controller that mains fuel and oil system components. It will not harm engine component, seals, gaskets, catalytic converters or oxygen sensors. Sea Foam Motor Treatment should be a staple in everyone's garage! Clean, Control, Lubricate, and Stabilize! Sea Foam Motor Treatment will help: Clean InjectorsClean Carb JetsClean DepositsControl Moisture in Fuel SystemsAdd Lubricity and Protection to FuelAnti-corrosiveLube Upper CylindersQuiet Noisy LiftersStabilize Fuels for up to 2 YearsClean PassagewaysLiquefy Gun and VarnishDe-Ice and Anti-GelClean Intake ValvesClean Pistons | Sea Foam Motor Treatment | Size 1 gal