Direct replacement for Mercury Marine 8M0078628Designed for use in 4-stroke marine enginesFormulated to provide superior corrosion resistance and wear protection to maintain peak engine performance and reliabilitySpecial viscosity modifiers help to optimize the performance of high-rpm 4-stroke outboard motors25W-40 viscosityProduced to meet Mercury Marine original equipment manufacturer specifications to best protect your outboardManufacturer part number 8M0078620