Synthetic Blend Engine Oil 5 Quart 25W40 | Sierra 18-9440-4
Synthetic blend 25W-40 engine oil is formulated for stern drive & inboard marine engines.
- 5 Quart 25W-40 Synthetic Blend Inboard and Sterndrive Engine Oil
- 4-cycle oil is blended with premium grade synthetic and mineral base stock combined with superior design additives formulated for the stress endured by sterndrive and inboard engines
- Superior corrosion protection
- Advanced lubrication for reduction of wear to internal engine components
- Outstanding friction reduction and wear protection
- Removes thermal breakdown under high RPM's, extreme temperatures and loads
- Extensively tested for outstanding performance
- NMMA FC-W certified/API-SL