90790-BS456, YAMALUBE 4 STROKE OUTBOARD OIL 4L

90790-BS456, YAMALUBE 4 STROKE OUTBOARD OIL 4L

Yamalube Oil is recommended for its specific formulation to meet the demands of Yamaha engines, providing lubrication, cooling, cleaning, and protection against wear and corrosion. Yamaha's engineers are involved in its development, ensuring compatibility and optimal performance for various Yamaha vehicles, from motorcycles to marine engines. The oil is designed to withstand harsh conditions and maintain engine health, even under high-RPM and high-load operation. 

The part number 90790-BS456 is for a specific type of Yamalube 4-stroke engine oil, which is primarily designed for Yamaha outboard motors. It is a 10W-40, API SJ motor oil formulated with additives to protect against corrosion, reduce friction, and prevent wear in the harsh conditions of a marine environment. It is also sometimes listed as a suitable all-purpose oil for other 4-stroke engines like those in motorcycles, ATVs, and scooters, although the primary application is marine use.