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2004 SR5 2.7l i4 Manual Transmission (Complete Flush)

Discussion in '1st Gen. Tacomas (1995-2004)' started by Švejk, Jun 11, 2024.

  1. Jun 11, 2024 at 3:13 AM
    #1
    Švejk

    #1
    Švejk [OP] Member

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    Švejk
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    2004 Burgundy Access Cab Tacoma SR5 2.7l V4 Manual
    Hello.
    could anyone advise me what I need to do a complete system flush to my 1st Gen Taco?
    I have the 50/50 coolant (3 gallons).
    I went to Toyota and asked for gear oil but they do only sell it in bulk. (Can you recommend which quality gear oil you recommend?) Based on the VIN, I need a
    $28 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
    75W-90.
    Then, I would need brake fluid and Power-steering fluid.
    Is there anything I am missing?
    Appreciate your recommendations.

    Thanks guys!
     
    Švejk, Jun 11, 2024
    #1
  2. Aug 1, 2025 at 12:03 PM
    #2
    fire_yota_01

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    fire_yota_01 Member

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    redline MT-90 gear oil is the one u need
     
    fire_yota_01, Aug 1, 2025 at 12:03 PM
    #2
  3. Aug 1, 2025 at 12:38 PM
    #3
    Red_03Taco

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    Red_03Taco Well-Known Member

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    I like Redline MT-LV for both the Tcase and manual transmission.
     
    Red_03Taco, Aug 1, 2025 at 12:38 PM
    #3
    fire_yota_01 likes this.
  4. Aug 1, 2025 at 12:49 PM
    #4
    fire_yota_01

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    fire_yota_01 Member

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    I have not tried that one, is there a difference of smoothness between the MT90?
     
    fire_yota_01, Aug 1, 2025 at 12:49 PM
    #4
  5. Aug 1, 2025 at 12:55 PM
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    Glamisman

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    Glamisman Well-Known Member

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    What part of the country do you live in and do you tow with the truck? If you look at the temperature range of gear oils you will see that 75-90 is an all around gear oil, if you live in Vegas, I would think the 75w-140 would be a better choice.
     
    Glamisman, Aug 1, 2025 at 12:55 PM
    #5
  6. Aug 1, 2025 at 3:20 PM
    #6
    Red_03Taco

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    Red_03Taco Well-Known Member

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    MT-90 is much thicker and designed more for a performance application that may cause significant heat soaking in the transmission. MT-LV would definitely be better for anyone who lives in cold climates.
    upload_2025-8-1_15-18-10.jpg
     
    Red_03Taco, Aug 1, 2025 at 3:20 PM
    #6

Products Discussed in

Mobil 1 104361 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
$27.88
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