Dirt seems to stick to plastic engine compartment parts the most. These would include plastic wire loom sheaths, plastic fan blades and other various plastic engine compartment parts. Please recommend a spray on type cleaner that will dislodge the dirt without melting the plastic that I can rinse off with water.

I use Simple Green MAX. Stuff foams up and breaks up dirt and grime really good, most of it just hoses right off, some might need a little scrubing depending on how dirty the engine is.

I'm sure there'* other stuff out there that works just as good or maybe better, but I find it works really well, plus I use it for all kinds of other stuff so I can have 1 bottle instead of 3 or 4 differrent things taking up space.

303 aerospace protectant does a great job of keeping the plastic looking nice if you want to use something after it is clean.

I think it is a good cleaner too but it would require you to atleast wipe everything by hand to clean it.

303 is good stuff!

works great on tires and interiors too. (if you like black tires w/o the shine and like a clean looking dash w/o an oily look)

Their carpet cleaner works awsome too.