Jakmax Super Lube 600ml SAE30 4 Stroke Lawnmower Oil: A high detergent SAE30 API SG/CD motor oil especially designed for small air cooled 4 cycle engines. This includes many lawnmowers, generators, garden tractors, tillers and other 4 cycle engines. Super Lube 4 cycle oil meets the warranty requirements of Briggs & Stratton, Tecumseh and other engine manufactures. JM986 and JM988 are "Exact fill" for Briggs & Stratton, Tecumseh, and most small four stroke engines.