Full synthetic, ester-fortified 4-stroke engine oil Recommended for all OEM equipment Formulated for snowmobiles and work/utility engines operating in cold weather extremes Protection and oxidative stability at any temperature Reduces temperature and increases power output Shear-stable, ester-fortified formula maintains oil viscosity and film thickness Surface-active chemistry aggressively attaches to engine surfaces and keeps them clean. OIL SNOW 4T 0W40 SYN 1L