MERCURY MARINE 25W-40 Synthetic Blend 4-Stroke Outboard Oil—Quart
This 25W-40 synthetic blend oil is formulated specifically for 4-stroke outboards. Qualified through extensive testing by OEM engineering to provide long-term marine 4-stroke engine reliability. Designed for optimum marine performance that regular automotive oils do not require. Superior moisture and rust protection, improved performance and protects against wear for trouble-free operation.