Full synthetic, ester-fortified 4-stroke engine oil specifically formulated for snowmobiles and work / utility machines operating in cold climate extremes. Provides excellent film thickness and viscosity stability across all operating temperatures. Offers excellent cold-weather starting and post-startup protection. Advanced, proprietary additive system increases power output while keeping your engine running clean, trouble-free and extending the life of the machine. Exceeds the requirements of API SN PLUS / JASO MA2. For all air and water-cooled 4-stroke gasoline engines. Recommended for all O.E.M. equipment. Formulated for snowmobiles and work / utility engines operating in cold weather extremes. Superior protection and oxidative stability at any temperature. Reduces temperature and increases power output. Shear-stable, ester-fortified formula maintains oil viscosity and film thickness.