Sierra 25W-40 4-Stroke Synthetic Marine Oil Sierra 4-Stroke 25W-40 Engine Oil is blended with premium grade synthetic and mineral based stock combined with superior designed additives formulated for...
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Add to CartThis 25W-40 semi-synthetic oil is designed for 4 stroke sterndrive, inboard, and outboard engines. This marine oil is formulated with premium anti-corrosion additives to stand up to marine weathering. XPS 25W-40 provides superior engine protection by helping reduce wear and resist viscosity and thermal breakdown. This engine oil is compatible with systems that contain super charger and catalytic converters.
It varies model to model, check out our Johnson & Evinrude oil capacity guides for more information and capacity charts!
California Residents:
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov