Trans fluid

Discussion in 'Gen 1 & 2 - Engine, Exhaust, Drive Line & AC syste' started by Gt489, Jan 7, 2019.

  1. FastCAD

    FastCAD SHO Member

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    I have had a Quaife installed for some time now and I used the Mobil 1 synth. fluid but have since switched back to the original type F ATF and I feel it is much smoother imho.

    I also have used Lucas products (oil & gas) in all of my cars for a long time and have had good results especially in the SHO it helped a lot with bringing my plug well seals back to life and the fuel additive keeps my injectors clean for the entire life span of the 100k tune up (do not over use injector cleaner 3,000 to 5,000 mi. will do it).
    Over time my oil use has gone from 1 qt. every 500 mi. to 1qt. every 3,000 mi. Check the truck stops for the gallons of oil stabilizer and fuel additive (much cheaper).

    I do not use any additives in my MTX tranny. It just does not seem necessary even though the Lucas product says it's o.k.

    Best of Luck,
    Joe
    '91 SHO
    225,000 mi.
    The heads have never been off lol.
    p.s. I am in SoFl. and I use 20/50 dyno juice.
     
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  2. PaulTAutoX

    PaulTAutoX SHO Member

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    My '92 5 speed was rebuilt "while he was in there" putting in the Quaife and the brass synchros were no longer available. We used Red Line ATF and I have had no problems.
     
  3. BaySHO Performance

    BaySHO Performance SHO Member

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    Actually, no. Per their 2003 catalog, what they recommend is Redline D4 ATF, not MTL.

    'superior stability allows high-temperature operation without varnishing valves and clutches. Also provides tremendously improved shifting in cold weather'

    https://www.dropbox.com/s/9cdm67a2zyj9rm8/SHO Shop v6catv73.pdf?dl=0

    This is what I've always used. The gears aren't immersed in fluid. The Redline is thinner than oem and splashes around more to provide superior lubrication. For a race car, you might also consider Royal Purple Max ATF.
     
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  4. RonPorter

    RonPorter SHO Club of America

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    I thought I had all of those old catalogs, but I've never seen that one! MTL was a recommendation somewhere along the way, and I believe that it was for the early brass synchro cars.

    But, as I found some years back, these now old trannies, combined with the cold weather we have, produces different needs. I had the supposed 90k+ used MTX that didn't like ATF, nor Synchromesh, and liked cheap gear oil the best.
     
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  5. firebat45

    firebat45 SHO Member

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    You do not need friction modifier. The Quaife does not have friction surfaces like a clutch-type LSD or the Wavetrac.
     
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  6. zak

    zak SHO Member

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    Seems to be the most recent MTX-IV trans fluid thread.
    dline
    I see GM Synchromesh in two flavors, one with friction modifier one without. Comment immediately above was w/r/t Quafe differentials I think.

    Any recommendations? Have always run Redline D4 but that isn't indicated for a trans with new synchronizers.

    AC Delco 10-4006 (GM 88900333) without modifiers, 10-4014 with modifiers
     

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