OK, I have a 2 1/2 gpm,2800psi and 6hp commercial set up BUT most of the time I can get the engine hot and then hit it with some purple power and get it off with a Garden Hose with a good nozzle. I do this cause i hate getting out the pressure washer and even more I hate starting it. (my shoulder hurts)
I've cleaned some pretty nasty engines with a good garden nozzle but then maybe I have a little higher water pressure than some.
Anyone THAT concerned about washing one engine can put down a piece of plastic, wash engine then fold it up and dispose of it at the landfill. At least we don't pull a car across the ditch and let the oil drain out in a ditch as we did 50 plus years ago.
I'll also agree to the car wash thing but again, my garden hose has more pressure than some of them!
Last edited by Achipmunk; 02/04/2012 6:54 PM.