good penetrating oil?

One of my cruisin magazines I get had a short article on penetrating oils.

The results were reprinted from Machinists Workshop Magazine on how
much torque was required to remove a nut from a "scientifically rusted" enenvironment.

No oil.......516 pounds
WD-40.....238 pounds
PB Blaster....214 pounds
Liquid wrench...127 pounds
Kano Kroil........106 pounds
50/50 mix of ATF & Acetone...53 pounds

Never tried it myself, just passing it along.