now how about the engine. can you just do that at a power wash or is that not recommended

 

I personally throw a couple plastic grocery bags over my alternator and fusebox, then power wash the living s**t outta it.

My powerwasher has a pick up tube that i put in a bottle of SImple Green Automotive. Works great.

When it's dry, I product called "Inside Out Detailer", made by Car Bright. It's an aresol/silicone spray that shines up metal, rubber, and plastic. Dries fast and doesn't leave a greasy film behind.