Transmission Gear Oil - Interesting Report

Discussion in 'RT/10 and GTS Discussions' started by Jack B, Jan 23, 2012.

  1. Jack B

    Jack B Enthusiast

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    A fiend just sent me an interesting report on testing different gear (transmission) oils. If this report has already been discussed, I apologize. I was just going to file it, however, I saw it included the Mopar synthetic oil we use in our transmissions. I have used the Mopar synthetic product for over ten years, but, this test report does not rank it very high.

    If you do want to waste time, just go to the results. Page 19.

    View attachment Study of Automotive Gear Lubes.pdf
     
  2. MikeG

    MikeG Viper Owner

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    I did note a couple of things:

    a). The test was done by and for the Amsoil Drive-train Division. The winner was Amsoil. I'd like to see additional unbiased objective reports performed by an outside testing firm with no close tied association to Amsoil, before formulating a concrete opinion.

    b). The test was accomplished in 2007. A lot has changed between then and now. I'd like to see a more recent study.

    But, this report does bring up interesting questions pursuant proper lubrication issues relevant drive-trains in high performance vehicles. It is certainly thought provoking.

    Thanks for posting.
     
  3. Steve-Indy

    Steve-Indy VCA Member - Great Lakes

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    Thanks, Jack...interesting info.



    As I see it, this seems to have been done by Amsoil (AMSOIL Drivetrain
    Division
    September 2007 AMSOIL INC.) as printed on the front page. This DOES NOT
    appear to have been done by an independent testing lab...nor is it coming from a
    peer reviewed professional journal as far as I can tell. It could all be
    true...but it still smells like "fish oil" to me, thereby undermining the
    credibility of the "study" (advertisement???) :)

    Mopar product studied was "Mopar Synthetic 75W-90 with Mopar LS
    additive"...which has NOTHING to do with Vipers !!!

    Still, an interesting read...THANKS !!!
     
  4. Dom426h

    Dom426h Viper Owner

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    That is exactly what amsoils marketing department wants you to do. Skip to the results that show our product is the best. Nevermind that the above tests might not be accurately testing the product for the specific app it is supposed to be used for.



    Our Fluids guru Tom has never mentioned Amsoil except but this one time commenting on how one of their tests that is bragged about in marketing dosnt even apply to the application it is used for.

     
  5. Tail lights

    Tail lights Viper Owner

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    I wouldn't trust amzoil at all, their products don't perform as advertised, I don't want to stereotype them, but I've personally caught some of their employees being totally dishonest, personally I can't trust them anymore.
     
  6. csmwiese

    csmwiese Viper Owner

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    There most likely is not that much different between the oils.........the #1 problem with the oil in the transmission or rear differential is lack of maintenance and #2 is not repairing a leak...even the smallest of leaks will come back to bite you, fluid gets low over timeā€¦temps rise or lack of lube=failure. You will probably never have a failure due to an oil issue if you use any of these oils or whatever oil you choose....your failure will be driver driving habits related

    Clint
    1997 GTS
     
  7. Jack B

    Jack B Enthusiast

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    I took the Mopar oil description to mean the 75-90W used in the T56 since 2000?
     
  8. Steve-Indy

    Steve-Indy VCA Member - Great Lakes

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    Jack, I see your point...as I took it to mean that tested lube was to be used in differential (Vipers use Mopar 75W-140 plus limited slip juice) and not tranny (which from 1999 through 2006 used 75W-85) !! Who Knows !!!! :)

    Even good science and/or tests, if presented poorly, can be very concerning to anyone familiar with scientific methods and publications.
     
  9. LaViper

    LaViper Viper Owner

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    Thanks for the post. I talked with a person in the Tremeck Transmission Booth @ a car show last year & he told me the best oil to use in my 06 transmission was Mobil One Syn. ATF Fluid. Anyone use this ? :feedback:
     
  10. Jack B

    Jack B Enthusiast

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    The Mopar truck gear lube and the T56 gear lube are 75-95, I have four quarts on my shelf. I doubt Mopar has two types of synthetic 75-95.
     
  11. Steve-Indy

    Steve-Indy VCA Member - Great Lakes

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    Jack, My point is that we are interested if VIPER fluids. A quick review of
    Viper fluid schedules from the 1992 through 2009 Service Manuals and/or CD's
    will reveal that ALL Vipers use the MOPAR "Synthetic Gear & Axle Lubricant
    SAE 75W-140 P/N 04874469AA (MS-8985)...for differential...along with MOPAR " Limited Slip Additive
    Friction Modifier" P/N 04318060AB

    MOPAR "Synthetic Gear & Axle Lubricant SAE 75W-140" 04874469 (MS-8985)
    is pictured below:



    [​IMG]
     
  12. CEJ

    CEJ Viper Owner

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    Not Diff fluid...
     
  13. Steve-Indy

    Steve-Indy VCA Member - Great Lakes

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    You are correct...I mis-read !!

    As noted...Mopar product studied above was "Mopar Synthetic 75W-90 with Mopar LS
    additive"
    Would like to see how the Viper correct transmission fluid ..."Synthetic Manual Transmission Lubricant 75W-85" (OEM for 99-06 Vipers...plus used as a substitute in 94-98 Vipers being treated for severe NGR under TSB)
    would have compared to others.
    ) ubder TSB) un under TSB
     
    Last edited: Jan 24, 2012
  14. Jack B

    Jack B Enthusiast

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    I read it a little closer and believe the test is diff oil. I had to reference it to the website to figure it out.
     
  15. Steve-Indy

    Steve-Indy VCA Member - Great Lakes

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    Thanks for your paitence, Jack. I guess that I'll never quite get over automatically assigning the term "gear oil" to use in differentials!! I must admit that if we used the Vipers in track settings, I would push harder to explore optimal fluids for specific purposes.
     

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