4 Gallon Case – Yamalube 4M 10W30 Oil

Protect your Yamaha outboard with Yamalube 4M 10W30, a premium mineral-based 4-stroke marine engine oil engineered to withstand the harshest boating conditions. This case of four 1-gallon bottles delivers excellent value for routine maintenance and is ideal for single or multiple outboard setups.

Yamalube 4M is an NMMA® FC-W®-certified formulation designed specifically for 4-stroke outboard engines. The FC-W rating ensures superior lubrication, corrosion protection, and resistance to oil dilution caused by fuel—critical factors for maintaining outboard reliability and long-term durability.

Unlike automotive oils, which cannot pass the rigorous FC-W marine certification, Yamalube 4M includes Yamaha’s exclusive additive package, providing enhanced lubricity, cleaner operation, and unmatched corrosion defense for saltwater and freshwater environments.

Key Benefits of Yamalube 4M 10W30 Marine Engine Oil

• NMMA® FC-W® certified for 4-stroke outboard engines

• Formulated specifically for harsh marine environments

• Provides exceptional lubricity and corrosion protection

• Resists harmful fuel dilution for more stable oil performance

• Includes Yamaha’s proprietary additive package

• Designed to exceed industry standards for outboard protection

• NOT interchangeable with automotive engine oil

Perfect for Yamaha 4-stroke outboard owners who want OEM-approved reliability, this 4-gallon case ensures smoother operation, longer engine life, and worry-free performance throughout the boating season.