I would like to know how many of you wash you engine bay? A memory popped into my head of when I was at a local do-it-yourself car wash and some dude was washing his engine bay out with high-pressured water. On a BRAND NEW BMW! I mean, who does that to their obviously new car? For me, I do not wash my engine due to the amount of sensitive electronics, fuses, and electrical sockets in engines these days. It's pretty risky. Older engines you were more able to get away with it. I use a damp microfiber cloth along with a Swiffer duster for hard to reach places and just dust all the parts individually every week.