Mercury - Oil Change Kit, 75/90/115HP EFI 4-Stroke, 1.7 Liters Maintenance 8M0081917. Overview. When you run these mid-range Mercury FourStroke motors, an oil change isn't just routine-it's what keeps them sounding steady after long days on the water. This kit keeps things simple by bundling the right oil, filter, and seals for the 1.7-liter EFI engines, so you're not digging around for the correct pieces. It's the same setup most techs reach for because it cuts down on guesswork and keeps the j