Yamalube 5W-30 Full Synthetic 4M FC-W Marine Engine Oil – Gallon – LUB-05W30-FC-04 – OEM

Yamalube 5W-30 Full Synthetic 4M FC-W Marine Engine Oil – Gallon – LUB-05W30-FC-04 – OEM

Yamalube 5W-30 Full Synthetic 4M FC-W Marine Engine Oil is Yamaha’s premium factory-formulated lubricant designed specifically for 4-stroke marine outboards. Engineered to meet NMMA® FC-W® certification standards, this full synthetic formula delivers superior protection against wear, corrosion, varnish, and sludge in high-rpm, high-load marine environments.

Unlike automotive oil, which is designed for engines cruising around 2,500 RPM, outboards commonly operate between 4,500 and 6,000 RPM for extended periods. That level of continuous stress can quickly break down standard automotive oils. Yamalube’s marine-specific formulation is built to withstand moisture-rich conditions, resist foaming and thermal breakdown, and provide the durability required to protect your outboard under sustained load.

Viscosity: 5W-30
Certification: NMMA® FC-W®
Type: Full Synthetic 4-Stroke Marine Engine Oil
Size: Gallon
Genuine Yamaha OEM Product