Mercury DSI Multi Fuel Plus Oil – 9.46 L Twin Pack is a genuine Mercury Marine 2-stroke multi-fuel oil supplied in two large 9.46-litre containers (part number 92-858092A01), engineered to provide reliable lubrication and protection for multi-fuel and direct fuel injection (DFI) two-cycle JP Optimax running with jet fuel.
This premium oil is specifically formulated to protect internal engine components in demanding marine environments, where high RPM operation, extended running periods, and constant exposure to moisture and salt air can significantly accelerate wear. When used in oil-injected systems or correctly mixed in pre-mix applications, it helps reduce friction and piston scuffing, minimise carbon and deposit build-up, and resist internal corrosion, contributing to smoother operation, improved reliability, and extended engine life in line with Mercury Marine factory standards.
Using the correct Mercury-specified Multi Fuel Plus oil is important because incorrect oil selection or mixing ratios can lead to increased wear, excessive carbon deposits, reduced efficiency, and potential engine damage under the severe load and temperature conditions common in marine use.
Note: Always verify the compatibility of replacement parts with your specific engine model and serial number. For assistance, consult your Mercury Marine dealer or refer to the Mercury Parts Catalog.