Holy! That's insanely dirty! Clean it, clean it, clean it! [>:]

Yes, I use my truck. Usually only on pavement, but most of the time, after I run it, I take all the electronics off, spur gear, and sometimes the engine and clean the chassis with spray cleaner. Then I clean all my shocks with a toothbrush, washing it for each shock. Then I'll put everything back on and clean it with that stuff on. I'll get a rag and wipe down the underside a bit, then spray it. Then, we move to the bulkheads, where I spray some of that stuff around there, add a bit of grease to the CVD joints, make sure none of that seeps out, then grab my toothbrush and get away all that clingy dirt.

I don't do this every time though, just when it's really dirty (which, to some of you, is probably quite clean)...