Mercury SAE 0W-30 Synthetic Power Steering Fluid 92-858077K01 Mercury Synthetic Power Steering Fluid is for use in power steering systems on Mercury and Mariner Outboards where SAE 0W-30 oil is recommended. There is no need to drain the system before using this fluid - it will readily mix with the fluid in the system. 32 oz. See your engine service and maintenance manual for specific applications and maintenance schedules. California Residents WARNING Cancer and Reproductive Harm - P65Warnings.c