Doug Harding wrote:

Bill could it be this? http://www.meangreendegreaser.com/

Doug Harding

There are many other interesting weathering posts by Gene Deimling in his "Gene's P48 Blog -
Quarter-inch Scale Modeling," showing his work as well as that of others.

In the P48_Modeler list discussion of 5/3/16, which Gene moderates, Lee Turner stated:

Mean Green Super Strength Degreaser is a household cleaner and is the best all around solvent for acrylic paint. Not only do I use it to blend weathering it is my brush and air brush cleaner of choice. I keep a small jar on my bench and when I'm done painting I just dump the air brush needle, cap and cup into the jar. A quick rinse under warm water will leave the parts clean with no hassle. A larger peanut butter jar is by the sink and when my air brush compatible jars and caps are empty they soak and then are given a rinse and dried and reused.

-- 
Rufus Cone
Bozeman, MT