Join Date: Oct 2004
Location: Crockett, Texas
Mentioned: 4 Post(s)
Tagged: 2 Thread(s)
Quoted: 95 Post(s)
Interesting info I came across on penetrating oils. I have never liked WD40. It isn't really a penetrating oil, and leaves a brown varnish like residue. It works good for what it was designed for, displacing moisture. (the WD stands for "water displacing")
I have used Kroil for years, but it looks like the "home brew" is the best!
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
2004 Armada SE, Throttle body coolant bypass, Grounding kit, modified Volant CAI with Amsoil dry element, custom engine cover, trailer brake controller, Michelin M/S2s, custom lower grill, Silver Star headlights, Bilstein HD shocks, Power Stop Drilled/Slotted Rotors, ceramic pads, Goodridge SS brake lines, interior and back-up LEDs, PLM transmission pan, trans radiator cooler by-passed, all Amsoil synthetic lubricants, Nismo headers, custom 3" SS exhaust system with high flow metallic core cats, UpRev tuner version, 318 rear wheel HP.