Cover parts, don't cover anything. I've heard the gambit of what to do and what not to do. Safe thing to do is just wipe it down with a damp microfiber. Using APC and then agitating with brushes would be ideal. But can it be safely rinsed off? Don't like the idea of just wiping it down with that stuff and just leaving it. Not overly dirty, but enough that it looks awful, esp since the engine is so easily visible. So, for those that have worked on these cars, can the engine bay be safely hosed down (not under pressure)? If so, do you need to cover anything?