Mercury Marine Engine Oil

Specifically formulated and developed to meet the needs of; High-output sterndrive and inboard engines. Multi-viscosity 25W-40 oil formulated to eliminate thermal breakdown (no viscosity improvers necessary) under extreme temperatures and loads. Field-tested and proven in gas...

Experienced boaters opt for Mercury® Marine 4-Stroke 25W40 Synthetic Blend Marine Engine Oil. This trusted boat oil surpasses automotive oils in marine applications, thanks to its specialized additive package tailored specifically for marine engines. Consistent use...