Large discussion about using free flowing water on an engine bay in the last thread so I figured I would share this from today: I detail cars for a living, and I usually maintain my engine bay with steam. It's a great alternative to free flowing water. Largely eliminates my use for a degreaser or brushes. Just steam the dirty area and wipe away. I coat the darker plastic stuff and hoses in stoner trim shine or use a water based dressing. Spray was on all the painted surfaces. While I initially cleaned my engine with free flowing water (it won't hurt anything and my engine was filthy when I got it), now I keep up with it every month or two with my steamer. While I do have a nicer steam cleaner, you can easily use one of the $40 Amazon steamers and get the same results. Photo attached.
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