4 Stroke Synthetic Outboard Oil 25W40

Starbrite's Pro Star Super Premium Synthetic Blend 4 Stroke Oil - one of the first 4 stroke oils to be certified under NMMA’s new FC-W category - is specifically designed for high performance 4 stroke outboards, gasoline inboards and stern drives operated in harsh, saltwater environments.
Features
Surpasses API requirements for SJ, CF-4 and CH-4