Marine engines operate in a harsh, corrosive environment that demands specialized protection you can't find in an automotive oil. Keep your engine operating at its peak with Mercury SAE 25W-40 4-Stroke Marine Engine Oil. In addition to superior strength and viscosity retention, it features a specialized additive package that helps prevent corrosion, on and off the water. This oil is recommended for use in all 4-stroke outboard, sterndrive and inboard engines, where 25W-40 is called for. It exceeds all marine industry requirements for 4-stroke oil and is certified FC-W and FC-W Catalyst Compatible.
For use in Mercury, MerCruiser and other leading brands of four-stroke outboard, sterndrive and inboard marine engines
Provides outstanding wear and corrosion protection to help extend engine life
Industry-leading strength and viscosity retention
Exceeds all marine engine manufacturer warranty requirements and recommendations and is certified FC-W and FC-W Catalyst Compatible
Produced by Mercury Marine to our stringent original equipment manufacturer specifications
Mercury oils, lubricants and engine care products are backed by decades of experience in engineering, testing and manufacturing to provide the best protection and performance.