SIERRA–4 Stroke Synthetic Blend Sterndrive Motor Oil - 25W-40 - 1 Gallon
4 Stroke Synthetic Blend Sterndrive Motor Oil - 25W-40 - 1 Gallon
Sierra's Synthetic Blend 4-Stroke 25W-40 Outboard Oil combines premium-grade synthetic and mineral base stocks with special additives to meet engine demands in the marine environment.
Blended with premium grade synthetic and mineral-based stock combined with superior designed additives formulated for the extreme rigors of the marine environment. Superior corrosion protection. Advanced lubrication for reduction of wear to internal engine components. Minimizes piston ring deposits. NMMA FC-W® Certified/API-SL.
- Outstanding corrosion protectin
- Reduces wear of internal components
- Minimizes piston ring deposits
- NMMA FC-W® Certified/API-SL
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.