With winter here we're all working on our cars right....RIGHT?! With that comes a need to remove rusty bolts. Here's something interesting from the Jaguar forum:
Penetrating Oils
Machinist's Workshop magazine recently published some information on various penetrating oils that I found very interesting. Some of you might appreciate this. The magazine reports they tested penetrates for break out torque on rusted nuts.
They are below, as forwarded by an ex-student and professional machinist. They arranged a subjective test of all the popular penetrates with the control being the torque required to remove the nut from a ''scientifically rusted'' environment.
*Penetrating oils ........... Average torque load to loosen*
No Oil used.................516 pounds
WD-40........................238 pounds
PB Blaster...................214 pounds
Liquid Wrench............127 pounds
Kano Kroil...................106 pounds
ATF*-Acetone mix.........53 pounds
The ATF-Acetone mix is a ''home brew'' mix of 50 - 50 automatic transmission fluid and acetone. Note this ''home brew'' released bolts better than any commercial product in this one particular test.
Our local machinist group mixed up a batch and we all now use it with equally good results. Note also that ''Liquid Wrench'' is almost as good as ''Kroil'' for about 20% of the price.
Steve from Godwin-Singer says that ATF-Acetone mix is best, but you can also use ATF and lacquer thinner in a 50-50 mix. *ATF=Automatic Transmission Fluid''
- Bob E.
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