I have had exellent results�with the POR15 "Marine Clean" product.� Spray on, wash off with water too.� It is water based and wash off with a hose.
�
It cost $22.50 a gallon from http://www.por15.com/ 

Joel Cort

________________________________
From: Todd Last <Rubatoguy@COMCAST.NET>
To: vanagon@GERRY.VANAGON.COM 
Sent: Thursday, March 28, 2013 2:50 PM
Subject: Re: Engine Degreasing

I have had great luck with S100 total cycle cleaner. Spray on, spray off
with water.
Also sold at Honda dealers rebadged as Honda cycle cleaner.

http://www.s100.com/s100_tcc.htm

Todd

On 3/27/2013 10:24 PM, JRodgers wrote:
> A little while back someone has asked about something to clean an engine
> with and a product called Greased Lightening was suggested.
>
> A product I want to suggest - and a tip I got from TJ Hannik - is to use
> a waterless hand cleaner like Orange GoJo or something similar - one of
> the waterless hand cleaners. The stuff cleans up an engine really well.
> You could dissolve some in water and use a pressure washer for
> application - that works too - then wash it down after.
>
> If you have road film or road grime on our vehicle, you can clean it up
> nicely with this waterless hand cleaner.
>
> Give it a try.
>
> John
>