Sterndrive and Inboard Oil

Marine engines are subjected to much higher loads and running stresses than automotive engines. Marine engines continually work at higher RPM Levels compared to passenger cars so your choice of marine grade oil has to be able to take the heat as well as deal with low temperatures of the water that cools the engine. Quicksilver's blend of premium grade base stock contains specifically designed additives for optimum marine performance that regular automotive oils do not require. Superior moisture and rust protection improved performance and protection against wear for trouble-free operation.  For more information see your local Mercury Marine Dealer.

Sterndrive and Inboard FourStroke Oil
Blended with special high grade oils and formulated without viscosity improvers, giving a premium quality multi-viscosity FourStroke motor oil

Synthetic Blend 4-Cycle Sterndrive and Inboard Engine Oil
This 25W-40 oil provides warranty protection for Mercury MerCruiser engines and exceeds all FourStroke sterndrive and inboard engine manufacturers requirements.

Full Synthetic Blend 4-Cycle Sterndrive and Inboard Engine Oil
Recommended for Petrol powered sterndrive and inboard engines that require FC-W Certified, SAE 25W40 Oil.

Heavy Duty Diesel Engine Oil
SAE 15W-40.  Formulated to meet heavy-duty diesel requirements while combating sludge and varnish formation.   This oil contains a higher additive level than standard fleet oils and provides greater protection under the most severe operating conditions.