Blog

Milky Lower Unit Oil: What It Means and What to Do Next Draining your lower unit oil is one of the simplest ways to check the health of your gearcase. If the gear lube comes out looking creamy, gray, or milky instead of its normal color, it's a sign that water has entered the lower unit. While finding milky oil isn't something to ignore, it also doesn't automatically mean you need a new lower unit. The important thing is understanding why it happened and addressing the problem before more seriou …