I have long used the 50/50 acetone/ATF method for easing the removal of barrels from the receivers of the WWII rifles I often restore. It's easy to immerse the receiver/barrel joint in a tall jug like a cut-off Coke bottle for a few days to let the low viscosity and surface tension of the acetone carry the ATF lubricant into the joint. However, I'm not so sure how to keep the very volatile acetone part of the mix around long enough to be really effective in a non-immersion situation, like most of our "corroded nut" applications, especially in a vertical or inverted position. Any experiences to share? Ray Melton From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of JettLarry@xxxxxxx Sent: Wednesday, November 28, 2012 6:47 PM To: chrysler300@xxxxxxxxxxxxxxx Subject: [Chrysler300] Fwd: Penetrating Oils Find this of great interest and will test it on a well rusted 300K ram engine in the back yard. jettlarry@xxxxxxx <mailto:jettlarry%40aol.com> Larry Jett 510-794 7911 Newark CA -----Original Message----- From: Robert Higday <bob.higday@xxxxxxx <mailto:bob.higday%40phc.net> > Sent: Wed, Nov 28, 2012 1:04 pm Subject: Penetrating Oils Just some interesting information to us that still mess around with a wrench and pliers at times...John 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 Robert Higday Redwood Region Webmaster http://CHVARedwoodRegion.org bob.higday@xxxxxxx <mailto:bob.higday%40phc.net> 510-745-7624 [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/