tranny oil did i scew up?

Discussion in 'Oil' started by 00BUCKSHOT, Apr 9, 2009.

  1. 00BUCKSHOT

    00BUCKSHOT Junior Member

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    went down to the parts house to pick up some 75/90 mobil 1 gear oil
    by mistake i picked up 75/140 mobil 1 gear oil
    guess when i noticed what i had done......yup after $18 worth of 85/140 was in my tranny lol think i should drain it and replace it with 75/90?
     
  2. Nite Rider

    Nite Rider Member

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    I have been running M1 75-140 for over 2 years with no problems makes shifting and noise almost go away
     
  3. KingHeritage

    KingHeritage Junior Member

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    No,the 75/140 gear oil is what you should run in your trans but the general concensus on this forum is that Spectro is a better choice of oil.
     
  4. 00BUCKSHOT

    00BUCKSHOT Junior Member

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    just got back from a ride to get the fluids hot.....tranny does shift very smooth!....how often do u guys change your tranny oil?i been doing it every oil change(2000k)i'm pretty sure i could get more outa the tranny oil but i don't chance it lol
     
  5. glider

    glider Veteran Member

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    Either weight will work good. It depends on your riding temps which one you would be better off with.

    I changed my trans with the engine and primary oils at 2500 but you can easily go to 5K on the trans oil. I like overkill in these areas.