I prefer to wipe down everything I can reach using rags sprayed with quick detailer. That way the engine still looks good but I know water won’t go anywhere that it shouldn’t. Always be careful of your fan turning on when doing this, of course.
As others have said, I’d let you use a pressure washer on my engine, but I’m definitely not going to advise someone of unknown mechanical abilities to use one.
Contacted a local detailing place and they charge $30 to come out to you and do it so I’ll just go with that. Thanks for all your guys input 
2 Likes