How To Change Lower Unit Oil on new Mercury FourStroke 250

John shows you how to change the lower unit oil in your new Mercury FourStroke 250 with the TorqueMaster Gen 2 lower unit. It is easy with the right tools. Tools needed are Mercury SAE 90 performance oil, oil pump kit, flat head screwdriver, tub to catch oil, paper towels, prop wrench, and wood block. Mercury info: https://salesforce.123formbuilder.com/form-6334580/?Id=A-18904 #mercurymarine #lowerunit