GreaseMaster - Biodegradable Degreaser

[ERBSIX]

Has anyone heard of this product (Grease Master) and/or used it previously?

I picked up a book about restoring trucks and they mentioned this product because it's environmentally friendly and fully biodegradable.

A pint is $75...

The paragraph from the book that piqued my interest is here:

"GreaseMaster is safe, non-toxic, has an almost neutral pH, is biodegradable and can legally be disposed of in waste water or used as a plant fertilizer.

Unlike detergents that emulsify or solvents that dissolve grease, GreaseMaster lifts the buildup-leaving no oily film on the surface of the part. The cleaned surface can simply be rinsed and painted. The product works extremely well with a power washer or can be used as a bath. A pint size container [$75] will yield 50 gallons of cleaning solution, which can be re-used by allowing the sediment to settle and then periodically skimming oil off the top. If used with a power washer, a bed of hay or stray under the wash area will collect oil and grease leaving the runoff clear with no oil film rainbow effect on the water's surface."

Some highlights from their website (http://www.rusteco.com/index.htm):

Safe on all metals & fabrics
Does not emulsify oil with water
Acts as oil separator
Can be directly painted over
Dilution factor up to 1000 times
Safe for marine/wild life
No effect on skin
No alkaline base
No disposal restrictions
Working pH near neutral
Contains no Phosphates
Multiple repeat use
Exceeds Milspecs on salt removal
Provides oil free surface

I am thinking about picking up some of this stuff since is safe for the environment and I don't have to worry about dumping toxic chemicals at some specialty location.

If anyone has direct experience with it, please let me know.