Quicksilver 10W-30 full synthetic marine engine oil is for non-catalyzed 4-stroke outboard, sterndrive and inboard engines. Featuring a specialized additive package, it protects internal surfaces from deposit buildup and provides industry-leading defense against rust during intermittent use.
- For non-catalyzed 4-stroke outboard, sterndrive and inboard engines
- Highest level of viscosity retention among 10W-30 full synthetic oils
- Elevated ZDDP levels prevent engine wear and corrosion
- Exceeds NMMA® FC-W® standards
- Compatible with mineral and synthetic-blend 4-stroke oils
