Sierra - 25W-40 Synthetic Blend 4 Stroke Inboard/Sterndrive Engine Oil - Quart - 12 Pack - 1894402

Want to know more about how your engine is breaking-in or wearing? Curious about whether or not your oil is doing its job? Want to be ahead of problems that may develop? PartsVu has partnered with Blackstone Laboratories and we are now offering professional oil analysis kits. Results are typically received in a few days via email. Shop now.

This 4-cycle oil is blended with premium grade synthetic and mineral based stock combined with superior designed additives formulated for the stress endured by sterndrive and inboard engines.

Superior corrosion protection.

Advanced lubrication for reduction of wear to internal engine components.

Removes thermal breakdown under high RPMs, extreme temperatures and loads.

Extensively tested for outstanding performance.

• 12-Pack
• Size - Quart