[mo_focus]

hehe, here is how i do it
1- drive up to a coin wash slowly and making sure engine should stay cool
2- let the engine cool down a bit, it should be still warm enough so the oil could loosen up
3- cover nothing :)
4- spray tractor engine cleaner, white can from crappy tire, on the whole engine, cover as much possible, usually i would empty one can per wash, the can cost 4 something
5- let it sit for abut 5 min
6- start the car and then
7- start the pressure washer and wash the engine bay while the car is ON.

once you have cleaned the whole car just drive off. just make sure you drive for about 30 min. this way you are maing sure there will be no water left, engine bay will be so hot that all the excess water will evaporate.

I have been doing this for a very long time and i never had any problems.

I guess i'm just a bit lazzy to use the toothbrush.

I do this once a year. and i think it does a good job.