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Machinist's Workshop Mag recently published some information on various penetrating oils that was 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
 
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That is some good info there man.
I'm gonna have to try that because I have been using PB blaster,Liquid Wrench
and WD-40
HUH, ATF and Acetone, who'd have thought.
 

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Interesting!
 

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Nice. I was just about to head out to buy some PB blaster but I guess I'll look for liquid wrench now. Shoot, may even go ahead and do the 50/50 mix.
 

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This actually is considering I had to get some rusted bolts off the other day and was using PB Blaster. Sounds like ATF-Acetone is gonna be a new winner.
 

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im gunna assume you dont want that 50/50 mix touching any paint or plastics?
 
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