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Front and Rear Diff Fluid.

Discussion in '3rd Gen. Tacomas (2016-2023)' started by Drunken Chewbacca, Jun 16, 2019.

  1. Jun 16, 2019 at 12:33 PM
    #1
    Drunken Chewbacca

    #1
    Drunken Chewbacca [OP] Well-Known Member

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    Quick question. I tried looking it up and most people that change the fluid use
    $30 75w-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
    75w-90 full synthetic gear oil for the front and rear diffs.
    I noticed yesterday when I was changing my Diff fluid on 19, the bottle says 'Limited slip'. I am not sure if it's a big deal or not? Its Valvoline 75w-90 Full Synthetic. I put roughly 400 miles on the truck sense the change. Hope I didn't put the wrong stuff in by overlooking that detail on the bottle.
     
    Drunken Chewbacca, Jun 16, 2019
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  2. Jun 16, 2019 at 12:48 PM
    #2
    Mojlnir

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    Mojlnir Well-Known Member

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    Mojlnir, Jun 16, 2019
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  3. Jun 16, 2019 at 12:53 PM
    #3
    JoeCOVA

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    JoeCOVA Well-Known Member

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    It’s not a problem. Just an additive.
     
    JoeCOVA, Jun 16, 2019
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  4. Jun 16, 2019 at 12:53 PM
    #4
    hiPSI

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    hiPSI Laminar Flow

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    No worries. It's just an extra additive to change the long chain polymers a bit. Works for non limited slip too.
     
    hiPSI, Jun 16, 2019
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  5. Jun 16, 2019 at 1:42 PM
    #5
    splitbolt

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    splitbolt Voodoo Witch Doctor

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    Practically speaking, it's fine.

    Synthetic base oil will tend to have less friction modifiers.
    Friction modifiers accelerate oxidation and is exacerbated by high heat.
    Most fluid change intervals negate any effect oxidation will have on the useable life of the oil.
     
    splitbolt, Jun 16, 2019
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    Drunken Chewbacca[OP] likes this.
  6. Jun 16, 2019 at 1:44 PM
    #6
    RyanDCLB

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    RyanDCLB Well-Known Member

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    RyanDCLB, Jun 16, 2019
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  7. Jun 16, 2019 at 1:47 PM
    #7
    freeriderchad108

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    freeriderchad108 Well-Known Member

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    A few minor things...
    freeriderchad108, Jun 16, 2019
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  8. Jun 16, 2019 at 4:52 PM
    #8
    Drunken Chewbacca

    #8
    Drunken Chewbacca [OP] Well-Known Member

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    Sweet. Thanks guys. I just want to make sure my ducks are in a row before my long journey.
     
    Drunken Chewbacca, Jun 16, 2019
    #8

Products Discussed in

Mobil 1 104361 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
$29.67
Lucas Oil Lucas 10045 Heavy Duty 85/140 Gear Oil - 1 Gallon
$35.99
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