AMSOIL FOGGING OIL is mainly for seasonally operated or infrequently used two and four stroke engines. Examples include engines used to operate handheld power equipment, recreational vehicles, weed-eater, lawnmower, and construction and farm equipment engines. AMSOIL Fogging Oil protects engines from corrosion, dry starts or moisture when equipment is stored for long periods of time. It also extends engine life and reduces operating costs.