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Re:The History of WD-40 by joecool1029 on Monday March 09, 2020 @09:32PM (#22531898)
Don't wanna sound like a crazy sales guy, but I prefer Kano Kroil as a penetrating oil. A few drops of the stuff on any rusted bolt and it's friggin amazing. http://www.kanolabs.com/

I wouldn't use it as a lubricant though past getting seized bolts freed up, but really it's 100% replaced WD-40 for me when working on rusted and old equipment.

Re:The History of WD-40 by lhuser123 on Monday March 09, 2020 @09:45PM (#22531983)
Transmission fluid plus acetone is excellent for seized bolts. I wonder why.
Re:The History of WD-40 by potentialverand on Monday March 09, 2020 @10:49PM (#22532326)
Project Farm tested 7 penetrating oils. ATF/Acetone ranked 2nd place above many specifically designed fluids.

https://www.youtube.com/watch?v=xUEob2oAKVs