Milkshake Oil and water on pistons - Boat Repair Forum
Hi all, I just bought a Mercruiser 470, knowing all it''s hang ups with the 470 as I owned one years ago and loved it. But this one has the following problems: 1. Pulled the dipstick, milky oil and the level was wayyyy high. 2. Pulled the drain plug, approx 1 gallon of clean water came out first, then milky oil, then thick milkshake type oil.