I stole this from the TEMP board - Thanks Tracy.

[R J]

 
Penetrating Oils Compared

Machinist's Workshop magazine actually tested penetrants for break out torque on rusted nuts. Significant results! They arranged a subjective test of all the popular penetrants with the control being the torque required to remove the nut from a "scientifically rusted" environment. Results relative to 'naturally rusted' conditions considered equivalent in standing.

Penetrating oil ........... Average load

None ..................... 516 pounds
WD-40 .................... 238 pounds
PB Blaster ............... 214 pounds
Liquid Wrench ............. 127 pounds
Kano Kroil ............... 106 pounds
ATF-Acetone mix............ 53 pounds

The Automatic Transmission fluid (ATF)-Acetone mix was a "home brew" mix of 50 - 50 automatic transmission fluid and acetone.

Note the "home brew" was better than any commercial product in this one particular test. A local machinist group mixed up a batch and all now use it with equally good results. Note also that "Liquid Wrench" is about as good as "Kroil" for about 20% of the price  

[Willow]

Highbinder's post on the General Board

[R J]

Highbinder's post on the General Board

AND Tracy's post on the Temp board.

Never saw Don's and still haven't seen it over there.

Thanks anyway Sarge.

[Sodbuster]

Good info .... thanks for sharing