help !! tranny expert question

Discussion in 'Modifications And Maintenance' started by heavy hauler, Aug 11, 2010.

  1. heavy hauler
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    heavy hauler New Member

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    ok, when first taking off in the morning tranny cold. car shifts just fine. but a few stop and starts and then it starts to scratch the gear going into 4th gear from 3rd. 70,000 miles.
    fine down shifting. just does randomly. and at high rpms.
    any ideas?
     
  2. Kevin
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    Kevin Well-Known Member

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    what do you have for fluid and how long since the last change?
     
  3. heavy hauler
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    heavy hauler New Member

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    amsoil changed about 10,000 miles ago
     
  4. Kevin
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    Kevin Well-Known Member

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    I noticed the same thing in my 04, shortly after i had changed to royal purple synthetic.... switched back to regular conventional gear oil and have not had a problem sense.

    I have heard, dont quote me on this, that synthetic fluids are "too slippery" for the subaru syncros.
     
  5. AWDimprezaL
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    AWDimprezaL has more posts than you

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    Thats the problem, old worn out syncros and friction modifiers = grinds. Try some extra S, mnsubaru price of 8.07, I have lots in stock.
     
  6. heavy hauler
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    heavy hauler New Member

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    what is subaru extra s?
     
  7. Threshld1
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    Threshld1 Well-Known Member

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  8. heavy hauler
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    heavy hauler New Member

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    is it a synthetic?
     
  9. piddster
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    piddster Lone Wolf

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    It doesn't matter. The transmission was designed around that oil's properties.
     
  10. loc_wrx69
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    loc_wrx69 New Member

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    Where could I purchase Extra S?
     
  11. turbo_turtle
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    turbo_turtle Well-Known Member

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    I was afraid of this when changing to Amsoil tranny fluid. Hence my recommendation for the Extra-S.

    Extra-S can be purchased at Morrie's Minnetonka Subaru or Fred Beans Parts. Other places that sell Extra-S usually overcharge. 4 quarts for the main tranny plus another 1 quart for the rear diff.

    ~Dan
     
  12. heavy hauler
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    heavy hauler New Member

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    well, since i have 5gal of texaco 80-90 i swapped it out, problem gone for now.