Old grease on engine and under body

[wazzabie]

My engine is full of mud, oil and grease. The underbody is also grease, oil and mud. Near the ujoints over the years grease has coated the underbody. I think in some ways this grease has protected it from rust. I wonder if this grease can also be a fire hazzard.

 

[Polymath]

Grease is combustible. Dirt is not. You have me wondering what the ratio of grease to dirt is when it becomes noncombustible.

 

[skunked]

Only one way to find out

 

[Chickntrk]

I oil my stuff every winter underneath with used motor oil

 

[eodcoduto]

Thanks to my transfer case output, my floors will never rust. But dirt does hold moisture so its a toss up.

 

[wazzabie]

It is grease, oil and dirt mixture. Almost like a tar substance.