This is what I do Brad.
1.) Park Jeep.
2.) Let it sit for 30 minutes
3.) Cover up the CAI Filter and PCM
4.) Hose it down
5.) Spray Simple Green all over
6.) Rinse the Simple Green Off
7.) Dry off the Excess Water
8.) Spray Armor All (Spray Bottle, not the Tire Shine) all over the place.
9.) Drive it around the block a few times.
10.) You have a clean engine.
Oh and only clean the engine when you are cleaning the body also because some Armor All will get on the body, so you need to wash that off.