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Quicksilver's 4Stroke oil technology outperforms automotive oils in marine applications because of its specialized additive package designed for marine engines.

• For use in all 4Stroke Marine Engines New formula 4Stroke oils are engineering approved for all marine 4Stroke applications, including Outboard, MerCruiser, High Performance, Stern Drive/Inboard, and exceeds all Marine industry 4Stroke oil requirements including FCW and FCW Catalyst Compatible.
• Flagship Engine and Corrosion Protection Industry leading strength and viscosity retention and ultimate corrosion and wear protection.
• The most recommended Marine Oil Over 5 years of engineering and development by the largest marine engine manufacturer in the world.