This is just a question about a procedure I was told they do, not that I am going to do it but was just wondering if any of the forum members heard of it. I took my Mh to a Big truck center to get a s...
I don't know about using Joy, but I've run Dawn dish detergent in plain water for a short time, to clean out oil residue in the water jacket after repairing a blown head gasket. I like Dawn because it rinse out very cleanly, even with cold water.