Originally Posted by
Polluted
I agree with rabbit. I go to auto repair class at the community college and there is a detailing class working next to us. They clean the engines with a strong degreaser and a hose. The always have the engines running because if the engine starts to stumble they know not to spray at that location anymore. They say to always have the engine running for this reason. They also say don't use a strong spray. They get the engine warm, spray on degreaser. let it sit for 5 minutes, then wash it off with a medium spray. Their engines always end up sparkling. I would stress, as do they, don't use full pressure power wash when doing this. You can wind up force water in place you don't want it, like electrical connectors. They would give you tons of pains in the ass down the road.