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    Thread: What kind of transmission fluid?

    1. Member philsburydonuts's Avatar
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      02-06-2008 12:33 AM #1
      Hey im looking to change the oil in my tranny. I was wondering what kind i should use. I heard good things about the GM syncromesh, but what would you guys recommend.



    2. 02-06-2008 12:40 AM #2
      not sure about the o2a trans, but ive been using GM syncromesh in my 2 liter o2o trans and its been awesome, shifts are great

    3. Member philsburydonuts's Avatar
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      02-06-2008 01:39 AM #3
      so do you think i could use it in my vr6?

    4. Member 95GolfIIIGL's Avatar
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      02-06-2008 01:44 AM #4
      Oh man, this is a debate for the ages. Go the manual transmission forum and search the word fluid in there. You will find a lot of info Long story short, the absolute best stuff is the VW OEM tranny fluid that is GL-4 rated. You can only get it from the dealership or a couple other places and it will probably cost bank.

    5. Member Pry's Avatar
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      02-06-2008 03:35 AM #5
      just goto the store and get mobil 1 or redline 75w90 synthetic gear oil, they work just as good as the vw stuff and cost half as much.

    6. 02-06-2008 05:04 AM #6
      mil-l-2105-d is the military spec i used mil-l-2105-e and it seems to be working fine it was changed in the summer

    7. Moderator vanaman's Avatar
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      02-06-2008 08:33 AM #7
      redline mt-90 75w90 is what im running.

      works great and i have had it for about 1.5 years now.

      steve


    8. 02-06-2008 08:57 AM #8
      I once made a post where I gave the viscosity at 40C and 100C for a bunch of the transmission oils that we use in our gearboxes, but it looks like the mods of this forum thought it was useless and deleted it.

      I've found the chart again and will post it.

      VI Vis@40C Vis@100C
      128 159.0 18.3 = AMSOIL CTL SAE 50 Powershift GL-1
      ..............16.7 = Motul MOTYLGEAR 75-90 GL-4/-5
      ..............15.6 = VW G005000/G005100 GL-4
      185 90.0 15.6 = Redline MT-90 75-90 GL-4
      ..............15.2 = Mobil 1 Synthetic 75W-90 GL-5
      ..............15.2 = Motul Gear 300 75-90 GL-4/-5
      ..............15.0 = Elf Tranself Synthese FE 75-90 GL-4/-5
      132 116.0 14.9 = AMSOIL AGL 80W-90 GL-5
      177 84.5 14.7 = AMSOIL MTG 75-90 GL-4
      133 76.2 11.0 = AMSOIL CTJ SAE 30 Powershift GL-1
      183 56.2 10.6 = Redline MTL 70-80 GL-4
      194 47.1 9.6 = AMSOIL MTF Synchromesh Trans fluid (GM/Chrysler) None
      208 41.6 9.08 = Penzoil Synchromesh trans fluid None
      198 34.0 7.5 = Redline D4 ATF Dexron III / Mercon / API GL-4
      138 40.5 7.1 = AMSOIL CTG SAE 10W Powershift GL-1
      ..... 31.2 6.5 = VW G-052-171-A2 None
      ..... 35.1 6.38 = VW G-055-726-A2 None
      ..............6.3 = VW G52 (part numbers G052726A2 / G05272601) None


      Modified by nater at 4:38 PM 2-10-2008


    9. 02-06-2008 09:22 AM #9
      I'd love to know what that chart means.

    10. Member Da_Mount's Avatar
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      02-06-2008 09:26 AM #10

    11. Member xxxfattonyxxx's Avatar
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      02-06-2008 09:39 AM #11
      NO MOBIL 1, i ruined my tranny with that crap. I use redline mt-90 but whatever you use make SURE its GL-4 not 5
      http://oldskoolvw.com/ Custom MK1 parts

    12. Member BlueDevilCabby's Avatar
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      02-06-2008 10:09 AM #12
      Quote, originally posted by xxxfattonyxxx »
      NO MOBIL 1, i ruined my tranny with that crap. I use redline mt-90 but whatever you use make SURE its GL-4 not 5

      6 years with no problems here


    13. Member hockeystar17mnj's Avatar
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      02-06-2008 12:28 PM #13
      Quote, originally posted by sxracer001 »
      not sure about the o2a trans, but ive been using GM syncromesh in my 2 liter o2o trans and its been awesome, shifts are great

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      02-06-2008 12:29 PM #14
      i use amsoil 75-90

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      02-06-2008 12:59 PM #15
      I've read many times that Redline MTL is much better to use in our transmissions than MT90, fyi

    16. Member Yo_Delprad's Avatar
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      02-06-2008 01:13 PM #16
      what should i use in my girl auto tranny on her jetta?
      ROFLwagens Upstate,NY VW/Audi

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    17. Member crashnburn987's Avatar
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      02-06-2008 02:00 PM #17
      most important thing:

      020 = GL4
      02A = GL5

      The rest is up to you as long as the fluid is fully synthetic.


    18. Member philsburydonuts's Avatar
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      02-06-2008 03:35 PM #18
      so as long as its gl5 i should be good to go?

    19. Member Pry's Avatar
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      02-06-2008 05:44 PM #19
      im curious about the vicosity chart. 100C is like 212F? do you really think manual tranny fluid ever gets that hot? i dont see how it could... my engine oil barely ever gets over 200F..

      edit: ive ran mobil 1 in my 020 for 2 years no probs what so ever with a peloquin. shifts like butter with 160k on the original transmission


      Modified by Pry at 3:39 PM 2-6-2008


    20. Member philsburydonuts's Avatar
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      02-09-2008 11:33 PM #20
      gl-5 or gl-4???

    21. 02-10-2008 08:16 AM #21
      do not use GL-5....it will eat your syncros.

    22. Member Turbostuff's Avatar
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      02-10-2008 08:37 AM #22
      i guess i am the only one that uses royal purple.

      i'm happy with it.

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    23. Member rweird's Avatar
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      02-10-2008 10:31 AM #23
      Quote, originally posted by Turbostuff »
      i guess i am the only one that uses royal purple.

      i'm happy with it.

      im using royal purple too. trans shifted wonderfully for the first few months i had it in. then i turbo'd it...ha. damn weak 02o actually i think i just need to adjust my clutch cable.

      overall im very happy with royal purple products.


    24. 02-20-2008 08:26 PM #24
      Anyone know if a 1996 golf is O2O or O2A?

      Thanks


    25. 07-09-2009 07:17 PM #25
      just put in redline mt 90 and it works wonderously

    26. Member mabbonizio186's Avatar
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      07-09-2009 07:20 PM #26
      i love royal purple

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