Penitrating oil shootout.

[MrBuick (Magnum)]

This is something my dad sent me from his AMC mailing list. I have no idea how they did the actual test, or if this really is legit. But thought I would pass it along.


February 2, 2008

Machinist's Workshop V20 number 2, April/May 2007, page 35
Article: “Testing Penetrating oils”

This reports a test of penetrating oils where they measured
the force required to loosen rusty test devices. The
details reported here were validated by the original
article author. He also added some details on the methods.

You must buy the issue if you want to see how they did the
test. The back issue is available for purchase.

The table below extracts the results table The lower the
number of pounds the better. Interesting that a simple mix
of acetone and power steering fluid (PSF) works the best!

Penetrating oil - Average load - Price per fluid ounce

None................... 516 pounds
WD-40................. 238 pounds------- $0.25
PB Blaster............ 214 pounds-------- $0.35
Liquid Wrench....... 127 pounds------- $0.21
Kano Kroil............ 106 pounds-------- $0.75
PSF-Acetone mix... 53 pounds-------- $0.10 (50/50 mix)

Note from original article author:
1) These are loads required to free the test piece after
8 hours of immersion in penetrating oil. This is
probably not representative of a quick squirt just
before a wrench is applied.
2) The original article states ATF was used in the DIY
mix. It was actually PSF. I corrected the table to
reflect this.

[Dustan]

very interesting cory

[Fishah]

I wonder what made them decide to combine PSF & Acetone?
And I wonder are there other combinations might be even more effective?

[SEOK]

^^lol
Ima go try peanutbutter and pickle juice next!

wow, never would've guessed acetone/PSF would work that well.
cool info thanks!

[MrBuick (Magnum)]

Originally Posted by Fishah

I wonder what made them decide to combine PSF & Acetone?
And I wonder are there other combinations might be even more effective?

I do wonder what made them attempt that. But with a little knowlage, I can see how they maybe got there. I know acetone has been said to be really good at cleaning junk out of the fuel system, and breaking things loose. So sounds like a decent way to thin any fluid. ATF was touted as a great penitrating oil from back int he day. Why not try PS fluid while we are at it? Who knows, maybe some old farmer used to mix it up and use it.

[SEOK]

Originally Posted by MrBuick (Magnum)

Why not try PS fluid while we are at it? Who knows, maybe some old farmer used to mix it up and use it.

Sounds kinda like my good ol Pops.
never liked to use what ANYONE said worked for ANYTHING, just made up his own **** and said it was better lol.

[Goldmaster]

We have that Kroil stuff at work and it works great. I like PB Blaster too, but Kroil works even better.

[Buffman]

Originally Posted by Goldmaster

We have that Kroil stuff at work and it works great. I like PB Blaster too, but Kroil works even better.

I use a combo of kroil, PB blaster and CRC freeze off when needed. the acetone mix is too volatile IMO to use in most of my cases because I use the propane torch. the CRC freeze off is nice because it cools the part down.

[MrBuick (Magnum)]

I wish they would have put the freeze off in there. I end up using that alot as well.

[Nick Danger]

Wow. I used Liquid Wrench 25 years ago. I bought the PB Blaster a couple of weeks ago because that's what the forums recommend, and I figured that the new stuff would be an improvement over the old compounds. I guess I was wrong.