1 part Dexron ATF,
1 part Kerosene - deodorized, K1
1 part Aliphatic Mineral Spirits
1 part Acetone, CAS #67-64-1.
(Optional 1 lb. of Lanolin, Anhydrous, USP per gallon, or OK to substitute Lanolin, Modified, Topical Lubricant, from the drug store)
AKA Ed's Red Gun & Bore Cleaner