Been using ATF as a penetrating oil for many years. It's very high in detergents and acts as a very effective penetrating oil. Very effective on rusted/corroded parts especially when you can completely submerge the parts in a bath and let soak.
Have never mixed acetone with ATF but have mixed ATF and kerosine for use as a cleaner/penetrant many times.
Last edited by shortwave; November 12, 2012 at 06:14 PM.