[Healeys] Penetrating oils compared

[Ghess4]

For all of you that are mechanically inclined and dealing with frozen
fasteners:

Penetrating Oils Compared

Machinist's Workshop magazine actually tested penetrates for break
out torque on rusted nuts. Significant results! 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 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.