[Healeys] Penetrating oils compared

[Richard Ewald]

I have seen this list over and over again.  Based on my years of
experience I have some serious doubts about the validity of this test.
WD-40 cut the effort in half?  Not in my experience.  WD-40 is a
lubricant not a rust buster, and not a very good one that.
WD-40 is almost as good at cutting rust as PB Blaster?  Again don't
make me laugh.
Liquid wrench?  Never had that stuff work at all.  Worthless IMHO
The best stuff I have ever used is Maltby Rust dissolving penetrant.
This stuff would actually dissolve the rust, and free up the parts.  I
have not been able to find it for years.  We use PB Blaster at work
for various stuck and rusted fasteners.  Works great.
I have not tried the acetone/ATF mix, I will have to give that a shot sometime.
Rick

On Fri, Sep 3, 2010 at 4:56 PM, Ghess4 <ghess4 at cox.net> wrote:
> 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