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synthetic or atf

Discussion in 'Early CJ5 and CJ6 Tech' started by dauntless_powered, Apr 2, 2010.

  1. dauntless_powered

    dauntless_powered SUB COB 2024 Sponsor

    Been doing a lot of searches, to the guys that have switched what did you like better for the stock tranny and T/C? ATF or synthetic gear oil or leave it at 80-90
    Posted via Mobile Device
     
  2. hotrod351

    hotrod351 Member

    leave it 80/90. problems ive heard and seen with syn is getting some leaks.
     
  3. dnb71R2

    dnb71R2 SuperDave 2023 Sponsor

    I haven't switched, and don't plan on it.

    I was recently given 2 qts of synthetic. If any of you would like it, you can have it for $20 UPS ground shipping. :)
     
  4. Patrick

    Patrick Super Moderator Staff Member

    Why would you put ATF in them?
     
  5. Mcruff

    Mcruff Earlycj5 Machinist

    Sounds like your looking for the solution to a problem that doesn't exist. Stick with whats suppose to be in there.
     
  6. dauntless_powered

    dauntless_powered SUB COB 2024 Sponsor

    Gotcha, just heard that they can make shifting a lot smoother. There is nothing wrong with it other than she is a touch stiff and seems a little noisy on decel, no big deal really
    Posted via Mobile Device
     
  7. kaiser_willys

    kaiser_willys Well-Known Member

    as much as that stuff cost and as much as our jeeps leak anyway. believe i would stick with what belongs in it ;)
     
  8. Patrick

    Patrick Super Moderator Staff Member

    "our" Jeeps don't necessarily leak...;)
     
  9. dauntless_powered

    dauntless_powered SUB COB 2024 Sponsor

    Actually the leak thing is exactly why I think I will stick with the gear oil, mine does not leak all that bad
     
  10. kaiser_willys

    kaiser_willys Well-Known Member

    I forgot about that one "uber rare" one that dont leak:p
     
  11. timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Sometimes ATF is added to the oil to reduce foaming, but I have not heard of running 100% ATF in place of gear oil.
     
  12. dauntless_powered

    dauntless_powered SUB COB 2024 Sponsor

    Tim, maybe that is what I have read, either way I have been convinced to stick with what I know 80-90 :)