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Quicksilver 4-Stroke Marine Engine Oil 25W-40 Synthetic Blend is engineered to meet the rigorous demands of marine environments. This oil combines premium-grade synthetic and mineral-based stocks with specialized marine additives not found in automotive oils, ensuring superior protection against wear, scuffing, and corrosion. Its advanced formulation maintains optimal viscosity across a wide temperature range, providing consistent lubrication for outboard motors and other marine engines.
Quicksilver is the premier supplier of Mercury Marine Original Equipment
QuickSilver 4-Cycle 25W40 Synthetic Blend Marine Oil for use in all 4-stroke marine engines
Not for use in non-marine 4-cycle engines or TC-W3 applications
Consistent lubrication for outboard motors
Flagship engine and corrosion protection
Trusted by marine professionals for reliability
Ideal for both recreational and commercial boating
Backed by Quicksilver’s commitment to quality
Size: 4-L