Description
Starbrite Premium is a synthetic blend engine oil designed for high-performance 4-stroke outboards, gasoline inboards, and stern drives. It surpasses API requirements for SJ, CF-4, and CH-4 standards. The additive package optimizes engine cleanliness and prevents sludge buildup. Shear-stable polymer additives, combined with synthetic base stocks, help maintain proper viscosity under extremely harsh marine conditions. This synthetic and organic blend ensures excellent low-temperature performance for quicker engine starts. It provides maximum protection in severe, high-rpm applications. Marine engines typically operate at higher RPMs than automotive engines, so they require oil specifically formulated to protect under these higher temperature and stress conditions.