Axle: Grease

At its simplest, axle grease is a thick, heavy lubricant designed to reduce friction between moving parts in your vehicle's axle assembly. Unlike engine oil, which is thin and flows freely, grease is "viscous"—it's designed to stay exactly where you put it, even under extreme pressure and heat.

If you're a DIY enthusiast, greasing your trailer or RV axle is a standard afternoon task. Here is the basic workflow: How to Grease a Trailer Axle - Lippert axle grease

Friction generates intense heat that can literally weld parts together. At its simplest, axle grease is a thick,