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ATF Fluid

Discussion in '1st Gen. Tacomas' started by tr0gd0r, Mar 29, 2009.

  1. tr0gd0r

    tr0gd0r [OP] Well-Known Member

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    Pullman, WA
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    2012 Silver Streak TRD Offroad DCSB V6 4x4
    TRD Catback Exhaust - 265/75/16 BFG KM2s
    I have read through the forums quite a bit and I am seeing most people recommend Toyota T-IV fluid for the ATF, but I also see that Mobil 1 Synthetic ATF is T-IV rated. Anyone use Mobil1 in their ATF? I think the Mobil1 might be cheaper as Toyota T-IV is $6.99/quart.

    Let me know your recommendations.
     
  2. jwscoot

    jwscoot Well-Known Member

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    Mississauga, ON
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    98 Tacoma v6 4x4
    Bilstein 5100 shocks all the way around, add a leaf in the rear
    probally either or would be good, as long as the mobile one has the friction modifiers needed (and since it says t-IV) it will be fine.
     
  3. humanoid

    humanoid bite me

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    Are you sure you need T-IV? When I still had my '99 it didn't need T-IV.
     
  4. Janster

    Janster Old & Forgetful

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    Lancaster, PA
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    Haven't used it in my tacoma ...but I use Mobile 1 ATF in everything else I own.
     
  5. Janster

    Janster Old & Forgetful

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    Lancaster, PA
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    Advantage Torza top (tri-fold), Husky floor mats, RuffTuff seat covers, C2C hood struts, Homelink mirror, USA Spec PA15-Toy (120gig Classic & 8gig nano), Garmin Nuvi 660, Protecta Bed mat, Pop-n-lock, TSB Springs, Scangauge II, Heated drivers seat, Fumoto drain valve, Aries pushbar, PIAA 540 fog lights, Hood scoop grahics, Flowmaster 50 series dual catback exhaust, RainX Latitude windshield wipers, Husky rear floor liner (ontop of folded down seats). Console Vault.
    Friction modifiers for the transmission?

    Never heard of it.
     
  6. Bing0

    Bing0 Member

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    Mobil 1 is no longer interchangeable with Toyota T-IV ATF Oil.
    I do not remember the exact specification differences but Toyota changed the automatic transmission in the Tacoma beginning in 2003.
    I am not 100% certain of that but I do know for a fact that in 2004 the transmission in the Tacoma is definitely different and Mobil 1 may not be used.

    Moreover, Mobil 1 changed the specifications on its synthetic ATF fluid also.
    It does not have the compatibilties listed on it that it once did.

    My truck is a 2002 and Mobil 1 is fine for it. If I had an '03 I would know for certain but whatever the case,
    your truck is your truck and I strongly suggest that you do your own homework before you put synthetic ATF in an '03 or '04 Tacoma.

    I have read that Amsoil is acceptable for these years and some have argued that they even run Mobil 1 in their trucks without any problems.
    I remember there being some very good reasons not to take a chance though.

    My .02

    Bing0
     
  7. Wood's Double Cab

    Wood's Double Cab Can't Have Nothin'

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    Pamplico, South Carolina
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    '02 Tacoma DC PreRunner SR5 TRD Off-Road
    Alarm, Nerf Bars, Vent Visors, Bug Deflector
    i haven't changed mine to mobil 1 yet but i run it in everything else that i own. would definitely check it out thoroughly before doing the swap as compatibility issues may be a problem. amsoil is a premium product as well. they're definitely available for technical questions and would be more than happy to discuss your specific application with you. convenient availability might be an issue and it will definitely cost more than mobil 1 but it IS a good product. two things for sure: heat and friction are NOT your friends and the synthetics WILL reduce operating tempreture and make you transmission run cooler secondary to a reduction in both. an additional transmission cooler will also help reduce operating tempreture even further.
    i've got a newbie question , though. is the toyota atf synthetic, a blend, or conventional ?
     
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