Home Depot sells this purple cleaner/degreaser by Zep.
I bought a 5 gal drum of the stuff (its bio, nonflame, etc) mixed 50-50. Its so strong it ate the paint off the inside of the cleaner in about a week. Cleans very well, nasty on the skin, didn't take very long to get gloves on.. thought the "safe" stuff would be ok for skin...wrong.... You can see this stuff eat the grease off like DAWN.
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Jody Sirmans
71 SS454
ACES