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Thread: adding tranny additive like Slick 50 or Lube Guard during AFT change?

  1. #1
    Join Date
    Jul 2004
    Posts
    34

    Default should I add Slick 50 or Lube Guard during AFT change?

    I have posted about his problem and received lots of help but this question if about the solution offered - change the tranny fluid & filter.

    It's a 1990 525i with 245K miles with a replaced tranny 10K miles ago with a used one form a junk yard.

    The problem it's having is slipping during shifting between the low gears.

    When I change the ATF does it makes sense to add something like Slick 50 or Lube Guard?

    If so, which do you recommend and why?

    Many thanks!
    Last edited by notesguy; 01-09-2006 at 10:05 AM.

  2. #2
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    Mar 2005
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    T·O·R·O·N·T·O
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    Default

    I can already hear the chorus singing "no, no, no"...
    :: HIDCanada.com | Illuminating Your World


  3. #3
    Join Date
    Feb 2004
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    4,894

    Default

    No... just flush out your tranny a couple of times.

  4. #4
    Join Date
    Dec 2003
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    Eastern Tennessee USi
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    14,843

    Default

    Change the fluid and filter, no additives.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  5. #5
    Join Date
    Jun 2005
    Location
    Cleveland, OH
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    1,279

    Default

    no.....
    If it cannot be fixed by the dremel or ducktape.. get out the sledge...
    --------------------------------------------------------------------
    I miss my e34

  6. #6
    Join Date
    Jan 2004
    Location
    Lexington, Kentucky
    Posts
    2,561

    Default BG trany treatment

    My indy put in some sort of BG trany treatment when they frist "changed-not flushed" and replaced the conventional ATF fluid at 77,000 miles. 30,000 mile later no problems. I then put in Mobil 1 synthetic ATF without additive. 10,000 miles later no problem.

    Just my experience.
    Thanks,

    1995 525i Auto, M50TU 2.5L, EAT chip, 1/95 build, USA, 205/65/15 tires, ASC+T, HID, lumbar, EC Mirror, BMW Alpine 5 radio with BMW-Pioneer CD Changer, abt 236k miles, Oxford Green/Parchment

  7. #7
    Join Date
    Jan 2005
    Posts
    56

    Default

    I just replaced the trans in my '95. The shop I use uses a Wynn's additive, makes the fluid very slick. My b-in-law also uses an additive. The additives in their opinion do not extend the maintenance interval as much as reduce wear.

    Prior to my rebuild I serviced and flushed the trans twice (through the shop) and was able to squeak an extra 20k out of it.

  8. #8
    Join Date
    Jun 2005
    Location
    Cleveland, OH
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    1,279

    Default

    Quote Originally Posted by Russell
    My indy put in some sort of BG trany treatment when they frist "changed-not flushed" and replaced the conventional ATF fluid at 77,000 miles. 30,000 mile later no problems. I then put in Mobil 1 synthetic ATF without additive. 10,000 miles later no problem.

    Just my experience.

    You know... one time I ran a pickup about 35000 miles on dino oil... no oil changes.. just topping it off....

    No problems 10000 miles later...

    Just my experience
    If it cannot be fixed by the dremel or ducktape.. get out the sledge...
    --------------------------------------------------------------------
    I miss my e34

  9. #9
    Join Date
    Jan 2004
    Location
    Lexington, Kentucky
    Posts
    2,561

    Default

    Is this some sort of smart ass response? If so it is not deserved. Why did you bother posting if you not trying to be helpful.

    If I read it wrong, I am sorry as I may just not understand some types of humor.
    Last edited by Russell; 01-10-2006 at 07:12 PM.
    Thanks,

    1995 525i Auto, M50TU 2.5L, EAT chip, 1/95 build, USA, 205/65/15 tires, ASC+T, HID, lumbar, EC Mirror, BMW Alpine 5 radio with BMW-Pioneer CD Changer, abt 236k miles, Oxford Green/Parchment

  10. #10
    Join Date
    Jun 2005
    Location
    Cleveland, OH
    Posts
    1,279

    Default

    Quote Originally Posted by Russell
    Is this some sort of smart ass response? If so it is not deserved. Why did you bother posting if you not trying to be helpful.

    If I read it wrong, I am sorry as I may just not understand some types of humor.
    Its both a smart ass response and a helpful post.

    The lesson to be learned is 10000 miles is nothing on a car.
    If it cannot be fixed by the dremel or ducktape.. get out the sledge...
    --------------------------------------------------------------------
    I miss my e34

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