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Nonsynethic 80w-140 Gear Oil??

Discussion in 'Performance and Tuning' started by Ckatz53, Nov 24, 2020.

  1. Nov 24, 2020 at 2:14 PM
    #1
    Ckatz53

    Ckatz53 [OP] Newish

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    2020 Cement Tundra CM Limited 4x4
    Radflo/Toytec, 35" Nitto Trails, DB Customz, 2" Boras, Nitro 5.29s, Grip Pro LSD, DD SS3 Pros
    Had 5.29 Nitro gears installed with a PowerTrax Grip Pro LSD in the rear. Coming up on the 500mile gear oil swap and am having issues sourcing conventional 80w-140 gear oil (GL-5) and quite frankly don't know much about them to know where to look.

    Everything I find online is synthetic or has friction additives. PowerTrax specifically says conventional (nonsynthetic) with no friction modifiers. They also state only 80w-90 but a quick call to them said 80w-140 is fine and their website info is incorrect.

    I've got 4 quarts of 80w-140 synthetic for the front, just lacking what I need for the rear. Anyone able to point me in the right direction?
     
    Last edited: Nov 24, 2020
  2. Nov 25, 2020 at 10:11 AM
    #2
    Fspmdt

    Fspmdt New Member

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    Bam 8 exhaust 285/70 18 ridges 4:88 gears, auburn lsd 6112s SPC UCA
    Lucas 85/140
     
  3. Nov 25, 2020 at 12:37 PM
    #3
    Ckatz53

    Ckatz53 [OP] Newish

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    Radflo/Toytec, 35" Nitto Trails, DB Customz, 2" Boras, Nitro 5.29s, Grip Pro LSD, DD SS3 Pros
    Thats what I thought as well, but a call to Lucas says it does have friction modifiers in it.
     
  4. Nov 25, 2020 at 12:58 PM
    #4
    Vizsla

    Vizsla New Member

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  5. Nov 25, 2020 at 1:38 PM
    #5
    Fspmdt

    Fspmdt New Member

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    Bam 8 exhaust 285/70 18 ridges 4:88 gears, auburn lsd 6112s SPC UCA
    pretty much all gear oil has some type of friction modifier in the additive package. Im thinking you don’t need an LSD additive. I have the lucas in mine with the auburn lsd. I had to add the LSD additive separately because the lucas did not come with it
     
  6. Nov 25, 2020 at 2:05 PM
    #6
    Ckatz53

    Ckatz53 [OP] Newish

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    Radflo/Toytec, 35" Nitto Trails, DB Customz, 2" Boras, Nitro 5.29s, Grip Pro LSD, DD SS3 Pros
    I tow frequently. Running 80w-90 would burn the gear up oil way quicker so I need the heavier weight. I just got 7 qts of Lucas 85w-140 and going to run it in both diffs.
     
  7. Nov 25, 2020 at 2:07 PM
    #7
    Ckatz53

    Ckatz53 [OP] Newish

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    2020 Cement Tundra CM Limited 4x4
    Radflo/Toytec, 35" Nitto Trails, DB Customz, 2" Boras, Nitro 5.29s, Grip Pro LSD, DD SS3 Pros
    Yeah thats what I'm finding. Very few, if any, petrol based basic gear oils left. Gonna run Lucas 85w-140 in both and call it a day. Need the higher temp stuff since I tow.
     
    Last edited: Nov 25, 2020

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