4-M OUTBOARD 10W30 OIL

Better for Your Yamaha
Don’t trust your Yamaha to off-the-shelf substitutes. This is the oil designed for your four stroke Yamaha outboard – precisely formulated to Yamaha’s uncompromising standards and extensively performance tested.

Better Marine Protection
The trend in marine power is moving to four stroke technology. Though many of these engines are in the same displacement and power output range as high performance automobile engines, marine operating conditions are significantly more challenging. Four stroke marine engines are subjected to high loads and extended full-throttle operation, while operating in an environment that includes high humidity and salt air. In these severe conditions, premium lubricity is critical. Which is why the NMMA (National Marine Manufacturers Association) created the FC-W® rating, a performance standard specifically for oil used in four stroke marine engines. Yamalube 4-M is FC-W® certified.