Thread: T-case oil recommendations Gen II.5

  1. #1
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    Dec 2011
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    Default T-case oil recommendations Gen II.5

    Do you guys have any recommendations for the t-case 80w90 oil? Something local since I am taking in my monty for major service tomorrow. Anyone against lucas? I wish I could find Amsoil locally, but I can't. Thanks in advance.
    1998 Montero - Winter Package - OME Suspension - 32x11.5x15 Hankook Dynapro MT - Garvin rack
    2004 BMW 525i 6 speed

  2. #2
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    Quote Originally Posted by m3at333hp View Post
    Do you guys have any recommendations for the t-case 80w90 oil? Something local since I am taking in my monty for major service tomorrow. Anyone against lucas? I wish I could find Amsoil locally, but I can't. Thanks in advance.
    Id just stick with a good quality dino lube. I'm no rocket scientist but I'd be willing to bet money that the difference between lubes would be inconsequential with normal off road use (I.e. operationally it would not be noticeable after 500k miles) so long as you're changing fluids as prescribed by mitsu. If you're racing it, that might be a different story, but then again you probably wouldn't be asking that question here if you were.

    1989 SWB Montero (3.0L v6, rear LSD), 33" mudders
    1996 Montero SR (3.5L v6, rear Locker), 35" mudders, 3.15:1 xcase crawler gears
    Build Thread: http://www.expeditionportal.com/foru...su-build-up...

  3. #3
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    Quote Originally Posted by off-roader View Post
    Id just stick with a good quality dino lube. I'm no rocket scientist but I'd be willing to bet money that the difference between lubes would be inconsequential with normal off road use (I.e. operationally it would not be noticeable after 500k miles) so long as you're changing fluids as prescribed by mitsu. If you're racing it, that might be a different story, but then again you probably wouldn't be asking that question here if you were.
    Ray, you KNOW I am a noob to wheeling. That is why you were guiding me back in Jan... Thanks, I will just stick to whatever I find then.
    1998 Montero - Winter Package - OME Suspension - 32x11.5x15 Hankook Dynapro MT - Garvin rack
    2004 BMW 525i 6 speed

  4. #4
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    Quote Originally Posted by m3at333hp View Post
    Ray, you KNOW I am a noob to wheeling. That is why you were guiding me back in Jan... Thanks, I will just stick to whatever I find then.
    Hey, not making light of anything here. And in all fairness, I'm far from any kind of expert and literally learn something new every day on mitsu's so before you decide, wait to hear what others have to say.
    Last edited by off-roader; 07-31-2012 at 05:35 PM.

    1989 SWB Montero (3.0L v6, rear LSD), 33" mudders
    1996 Montero SR (3.5L v6, rear Locker), 35" mudders, 3.15:1 xcase crawler gears
    Build Thread: http://www.expeditionportal.com/foru...su-build-up...

  5. #5
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    Use 2.6 QTS. of API - GL-4, SAE 75W-90 or 75W, 85W
    Michael j

    TreadLightly! Trainer

    GrassCat III, 1994 Montero 5 speed stock ( for a little while ).

    GrassCat II, 1998 Montero with winter package. All the bells a whistles. Ran off with Hector.

    GrassCat I, 1991 Ran off with Justice R.

  6. #6
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    Sacramento, going back to Oakland soon
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    I use redline heavy shock in the diffs and t-case, works stellar.
    Hell there are no rules here, were trying to accomplish something!

    T. Edison

  7. #7
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    Oct 2010
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    California, U.S.A.
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    I'm running Amsoil in the t-case and diffs., and have run their lubes in all of my 4x4 vehicles- it has always performed flawlessly.
    I've used the following in my Gen. III since it was purchased ten years ago:

    T-case: 75w-90 severe gear
    diffs: 80w-90 gear lube
    '02 Montero: OME suspension, ARB front bumper, sliders, homemade 4mm skid plates and spare tire Blitz can mount, extended breathers,
    K&N air filter, Optima Yellow Top, BajaRack, IPF lights, Goodyear Duratrac 265/75/16's, RUD 4x4 Grip Chains

  8. #8
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    I ended up just using dino Chevron T-case oil and Mobil 1 diff oils. I wish regular stores carried amsoil. A lot of BMW guys like the stuff too!
    1998 Montero - Winter Package - OME Suspension - 32x11.5x15 Hankook Dynapro MT - Garvin rack
    2004 BMW 525i 6 speed

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