STERNDRIVE & INBOARD 4 STOKE OIL 25W 40 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 & proven in petrol & diesel applications • Provides superior lubrication and protection of internal components from corrosion, wear, scuffing and scoring – even in higher temperature engines • Meets and exceeds API service requirements for SJ, CF-2, CH-4 with a multi-functional additive that assures “Marine Grade” oil performance.