Mercury Marine 4-Stroke Engine Oil 25W-50 Synthetic Blend

High‑performance 4‑stroke marine engine oil is designed for Mercury Racing engines, including FormulaRace, Verado, and 525EFI through 1650 sterndrives. This SAE 25W‑50 oil delivers strong wear and corrosion protection, maintains viscosity, and helps prevent varnish, sludge, and rust to support long engine life. It meets or exceeds FC‑W marine oil requirements and comes in a 1‑gallon bottle.

Product availability varies between locations, and some products are only available online. Please contact your nearest Martin Motor Sports here for availability.