Mobil 1 (120763) 5W-20 Motor Oil, 5 Quart, Pack of 3 Advanced full synthetic formula. Helps prevent deposits and sludge build-up to enable long engine life Excellent overall lubrication and wear protection performance for many driving styles; Outstanding thermal and oxidation stability Outstanding performance during the maximum oil change interval recommended in a vehicle's owner's manual; Superb viscosity control Enhanced frictional properties; Aids fuel economy Excellent low-temperature capabilities; Helps extend engine life and reduce stress on starting system components