The Mercury® Quicksilver® 4-Cycle 25W-40 Engine Oil is for heavy duty use, providing power and protection for 4-cycle inboard and outboard gas engines on your recreational boat.
FEATURES:
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 and diesel applications
Provides superior lubrication and protection of internal components from corrosion, wear scuffing and scoring - even in higher temperature engines
Provides warranty protection for Mercury MerCruiser engines