Valvoline lawnmower oil is a high quality lubricant specially formulated for use in small air-cooled engines. This includes chain saws, lawn mowers, small tractors and similar equipment operating at high speeds. This product keeps the engine clean and protects it from wear and corrosion. It has received a viscosity rating of 30 from the Society of Automotive Engineers.Valvoline lawn mower oil is formulated to meet safety standards and is considered safe for use.