Super Premium 4-Stroke 25W40 Outboard Oil
STAR BRITE Super Premium 4-Stroke 25W40 Outboard Oil is designed for 4 stroke high performance outboards, gasoline inboards and stern drives. Meets or exceeds all criteria for viscosity, filter plugging, foaming and aeration. Successfully passes NMMA’s 100-hour general performance engine test.
The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.