Formulated for used with your DFI Mercury®, Mariner® OptiMax® outboards, and DFI 2-stroke engines, the Quicksilver® DFI 2-Stroke Marine Engine Oil offers unrivaled marine engine protection and on-the-water performance you can count on. This direct-injection outboard engine oil greatly reduces performance-robbing carbon deposits in the combustion chamber, it provides increased lubricity, and it reduces exhaust smoke. Overall, it delivers outstanding corrosion resistance and general protection against wear, and these help extend the life of your boat's engine. For decades, Quicksilver has delivered superior engine oils that are rigorously tested and engineered to the highest standards. Size: 1 gallon. For DFI Mercury, Mariner OptiMax outboards, and DFI 2-stroke engines. Outstanding wear and corrosion protection. Reduces exhaust smoke and carbon deposits in combustion chamber. Increased lubricity and resistance to wear. Dangerous goods must be shipped via ground transportation to a physical address. This item cannot ship to a PO box or Rural Route. Additional shipping fees may apply. Hazardous Material. Must ship ground only. Not eligible for expedited shipping. Contiguous 48 states only. A physical address is required for delivery. LTD QTY - In the event you wish to return this item, due to regulatory requirements, please contact customer service and we will provide the special shipping label and instructions required for the return of this item.