Sierra NMMA FC-W Catalyst Compatible Oils have been specifically designed to meet the unique requirements of modern four-stroke recreational engines with or without emission catalyst systems. Since recreational engines are often used in extreme operational and environmental conditions, robust oil is required to provide adequate protection. Utilizing premium base stocks and industry leading additive technology, Sierra Catalyst Compatible Oils excel.
Industry leading wear protection and deposit control for engine longevity
Minimize internal engine corrosion
Enhanced detergent and dispersants properties suspend and prevent engine sludge formation
Reduced engine friction
High quality base stocks prevent thermal and oxidative breakdown
A special blend of synthetic base oil and a balanced additive system that exceeds the FC-W requirements for marine engine oil. Recommended for gasoline and diesel inboard and sterndrive engines Superior engine protection during startups, operation and storage Reduces friction and wear for extended engine life Reduces oil consumption and improves fuel economy Sold in case packs only.
Formulated to provided excellent lubrication and corrosion protection. Developed for the marine environment and outperforms automotive engine oils with excellent detergency, anti-oxidants, anti-wear, and corrosion protection. This results in reduced internal component wear and corrosion, cleaner pistons, and prevention of ring sticking. Excellent low temperature operating properties. Meets or exceeds quality performance API SJ, CF-4, CH-4 and is NMMA FC-W certified. Recommended for use in Mercruiser and OMC. Sold in case packs only.