Best penetrating oil?

Discussion in 'Motorized Bicycle General Discussion' started by silverbear, Mar 27, 2010.

  1. silverbear

    silverbear The Boy Who Never Grew Up

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    I ran across this on my Suzuki Samurai site and thought I'd share it. (Especially for those of us with rusty old bikes.)


    "For all of you that are
    mechanically inclined.... .

    Penetrating Oils Compared

    A study done by Machinist's Workshop magazine in their April 2007 issue
    looked at different penetrating oils to see which one did the best job of
    removing a rusted bolt by measuring the pounds of torque required to loosen
    the bolt once treated.

    If the study was scientifically accurate,
    it turns out a home brew works
    best!

    Here's the summary of the test results:

    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

    The
    Automatic Transmission fluid (ATF)-Acetone mix was a "home brew" mix of 50
    -
    50 automatic transmission fluid and acetone.

    Note the "home brew" was
    better than any commercial product in this
    one particular test. A local
    machinist group mixed up a batch and all now
    use it with equally good results.
    Note also that "Liquid Wrench" is about as
    good as "Kroil" for about 20% of
    the price."

    Has anybody here tried this? Looks like WD-40 is slightly better than spit.
    SB
     
  2. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    How scientific is it? Did they tighten them to a certain spec, then let them rust on evenly in a lab?

    Very subjective....I have used WD 40 and it works GREAT.
    PB is the shizziola. ATF alone works pretty well too, never tried adding acetone.

    Time is the main factor....once applied, let the parts sit for a minimum of 1/2 hour.

    I have my own home brew called "Poison Oil" which works super.
     
  3. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Still, food for thought Silverbear, thanks!
     
  4. BarelyAWake

    BarelyAWake New Member

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    Good stuff silver!

    While I jus' use PB, the techs at the marina here have long used a "secret" mix, given what salt water exposure will do to aluminum & steel - they gotta do sumfin' heh

    The secret is out - it's just the ATF-acetone mix that's on yer list :p



    Actually come to think on it - they got some concoction they use for lubrication too (mostly the skid-steer)... Ima gonna hafta find out what that gunk is lol (but FYI marine grade bearing grease is the best stuff evva!).
     
    #4 BarelyAWake, Mar 27, 2010
    Last edited: Mar 27, 2010
  5. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    A little heat and hammering with a small ball peen in the right place make the (any) oil work better too.
     
  6. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    My "secret formula"? ATF, Hoppe's Gun Nitro, and a little paintbrush to apply it with. No waste!

    I use one bottle of Hoppes, and a pint of ATF, any kind. I put it in a coffee can.

    Have you ever used a can of PB B'laster and not sprayed it's low pressure spray everywhere you didn't need it?
     
    #6 Bikeguy Joe, Mar 27, 2010
    Last edited: Mar 27, 2010
  7. 2door

    2door Moderator
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    Silver Bear,
    You reminded me of something I'd learned...well let's just say, a long time ago. When I was in my late teens I worked for a Chevy dealership in Miami Florida. Lots of salt air to really play havoc with threaded parts. The front end guy there showed me a mix he used; ATF and mineral spirits. It would free up the rustiest bolts and nuts in minutes. On real bad ones he'd apply just a little heat and tap with a small hammer. Always seemed to work. I'd forgotten all about that until your post. Thanks.
    Tom
     
  8. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    ATF and mineral spirits...sounds like MMO!
     

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