1 Case of (4) 1-Gallon bottles Yamaha 4M 10W30
Yamalube 4M is a mineral-based four-stroke outboard engine oil that’s an approved NMMA® FC-W® formulation specifically for use in the harsh marine environment. The FC-W® rating, which sets the minimum standard for outboard engine lubrication, corrosion protection, and resistance to potentially harmful effects of oil dilution caused by fuel, provides critical assurance that your outboard’s oil meets the minimum.
Yamaha’s exclusive and proprietary additive package means Yamalube 4M meets or exceeds the industry standards for lubricity and corrosion protection. Automotive engine oil will not pass the rigors of the FC-W® test.