Mercury 92-858074K01 Power Trim Steering Fluid Mercury 92-858074K01 Power Trim Steering Fluid is for use in most power trim and power steering systems on Mercury, Mariner, and Force outboards and Mercury Mercruiser Sterndrives. You do not need to drain the system before using this fluid, it will readily mix with the fluid in the system. Not recommended for use in systems that specify SAE 0W-30 oil. California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Goo