Red Logan #12252 Posted November 23, 2012 Share Posted November 23, 2012 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. Link to comment Share on other sites More sharing options...
Outlaw Gambler Posted November 23, 2012 Share Posted November 23, 2012 Back in my younger days, Dad and I had a salvage yard and had lots of cars from accidents and just getting old. When we needed an engine, and they wouldn't turn over by hand, we would remove the spark plugs and shoot in some straight transmission fluid in each spark plug hole. Then come back the next day or two and almost all of them we treated would turn over by hand. Lots of uses for transmission fluid and a little reminder of Dad. Link to comment Share on other sites More sharing options...
Deacon Will Posted November 23, 2012 Share Posted November 23, 2012 What TYPE of AT fluid was used or does it not matter? Many types on the market today with different characteristics. Link to comment Share on other sites More sharing options...
Long Branch Louie Posted November 23, 2012 Share Posted November 23, 2012 I would say some of the older types, like Dextron III, because much of the new stuff is at least partially synthetic and is also di-electric. Link to comment Share on other sites More sharing options...
Deacon Will Posted November 23, 2012 Share Posted November 23, 2012 Searched this on line....from an article 2007. Article showed power steering fluid instead of AT FLUID...but was a mistake. TIME... allowing any penetration to work is a key factor. ATF/acetone reminds me of EDS RED Formula. Seems the acetone thins out the lubricant allowing it to seek/seep into voids., Link to comment Share on other sites More sharing options...
Forty Rod SASS 3935 Posted November 23, 2012 Share Posted November 23, 2012 What TYPE of AT fluid was used or does it not matter? Many types on the market today with different characteristics. Whatever is cheapest. Seriously Link to comment Share on other sites More sharing options...
Paladin Gun For Hire Posted November 23, 2012 Share Posted November 23, 2012 I have advised my customers of this for years. The very best rust bustin, bolt bustin stuff around. Link to comment Share on other sites More sharing options...
Utah Bob #35998 Posted November 24, 2012 Share Posted November 24, 2012 Cool tip. The Saloon is very edumacational! Link to comment Share on other sites More sharing options...
The Original Lumpy Gritz Posted November 24, 2012 Share Posted November 24, 2012 Marvel Mystery Oil is VERY, VERY good for this use. IMHO, it's better than ATF....... LG Link to comment Share on other sites More sharing options...
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