Hi all One of the chaps on here kindly mentioned home brew penetrating oil, a mix of 50/50 ATF or light cooking oil and acetone. Well I tried that and found that using light cooking oil, sunflower, mixed with acetone does not mix but the acetone floats on the top of the oil. tried it with 3 in One oil and the same (I don't have ATF (Auto Trans Fluid I am guessing) It does not mix. So I can't for the life of me think this could work as it seperates, like oil and water. (perhaps good on a salad????) I am using 99.9 % acetone. Any suggestions please? If not what do you use as good penetrating oil?