What does everyone recommend for cleaning under the hood? I was thinking of using EF HI-Intensity. I have S-100, the motorcycle version of P21S total autowash. Has anyone used the P21S?
but i just did the engine a few mths back....that EF HI is awesome...the gunk really comes off with that stuff....i followed db's tips...letting the engine warm up a little....covering electronic things first..etc...good tips in there...anyway....make sure you have a crap load of towels u never want to use again....and start putting the bandaids on your knuckles now.....good luck buddy!
Checkout the Before & After Photos of an engine I detailed using Meguiar's Extra cleaner/degreaser. I was very pleased with its ease of use and I think the photos speak for themselves regarding the end result.