I haven't been able to find a thread on this so here goes: Last weekend I took my 2002 Chevy Trailblazer LTZ 4.2 I6 on a camping trip involving hours and hours on dirt and gravel roads. The results is this thick sandy oily residue on lots of the engine parts. I feel compelled to spray some...

Hey everyone, I am wondering what would be the best way/s to clean up my engine compartment. I just picked this up from the auto auction, and dealer didnt feel like cleaning it before they sold it. So I guess I am stuck with this job (no biggie). In the past for older vehicles, I would just...