test of various penetrating oils

gtxtreme19 · Post by **gtxtreme19** » Mon Sep 09, 2013 9:36 pm

Not my info I copied from another forum that I've been on a few years. I figured with some of the debating that goes on about wd-40 and pb blaster this could help. I've been using the atf/acetone for some time and its awesome. If you use the right fingernail polish remover it even smells prettier than atf

"The April/May 2007 edition of Machinist's Workshop did a test of penetrating oils where they measured the force required to loosen rusty test devices. Buy the issue if you want to see how they did the test. The results reported were interesting. The lower the number of pounds the better. Mighty interesting results for simple acetone and tranny fluid!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
ATF-Acetone mix.. 53 pounds .. $0.10
The ATF-Acetone mix was a 50/50 mix (1 to 1 ratio)."

r/tguy02 · Post by **r/tguy02** » Tue Sep 10, 2013 9:26 am

nice comparison, i've used kroil before but that shit is expensive. nice to see a cheap alternative and i happen to have both ingredients

iThane · Post by **iThane** » Tue Sep 10, 2013 9:46 pm

Ohhhhh perfect! I just called to order some new parts for my coil overs and they said they stopped using the pieces and suggested penetrating oil instead. Never heard of the stuff before but this gives me a good lead! Thanks!!

fixitmattman · Post by **fixitmattman** » Tue Sep 10, 2013 9:55 pm

That's a tough one to simulate, how do get everything to rust at the same rate!

I've heard of similar results with an ATF-Diesel mix as well.

gtxtreme19 · Post by **gtxtreme19** » Tue Sep 10, 2013 10:03 pm

fixitmattman wrote:That's a tough one to simulate, how do get everything to rust at the same rate!

I've heard of similar results with an ATF-Diesel mix as well.

That's what I thought too, how do they get the same test 100% every time. There has to be some way to measure rust factor, but I don't know. I've been using atf/ acetone since I read this, today I got the forks and pistons out of my 77 Honda cb750 with the mix where 2 weeks worth of soaking in marvel mystery oil didn't help. I also have a seized 413 soaking to get pistons and crank out. I like it, but that's just one opinion

r/tguy02 · Post by **r/tguy02** » Wed Sep 11, 2013 8:33 am

^ i thought that one over in my head for a while and i'm willing to bet its an average of so many they do using the same penetrating fluid. so even though it probably varies, if the average is lower, thats the better fluid

moe8555 · Post by **moe8555** » Sun Dec 29, 2013 11:08 am

Sorry for the ridiculous question, but which ATF is most suitable for this?

Our ATF+4? Dex? Mercon?

gtxtreme19 · Post by **gtxtreme19** » Sun Dec 29, 2013 11:11 am

Whichever atf is sitting in your garage. I've used most of them and even some really dirty used atf and all worked about the same