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Gear oil additive for differentials?

Discussion in '2nd Gen Tundras (2007-2013)' started by Jwood562, May 22, 2025 at 11:25 PM.

  1. May 22, 2025 at 11:25 PM
    #1
    Jwood562

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    Jwood562 [OP] New Member

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    Getting ready to do my differential services soon and was wondering if anyone was using an additive to boost the oils performance.

    if so, which one?
     
    Jwood562, May 22, 2025 at 11:25 PM
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  2. May 22, 2025 at 11:57 PM
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    blenton

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    blenton New Member

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    No additional additives needed. Pick a high quality synthetic oil of the correct weight and you have all the performance you need. Modern oils are formulated with advanced additive packages that far exceed the ad-packs of 20 years ago in terms of anti friction, anti wear, etc. Pick a brand for your budget that is available and enjoy. Mobil 1 has treated me well for years; Mobil Delvac is currently doing well for me. Redline, Castrol, Valvoline, all make quality oils that I’ve used with satisfactory results. Or you can step up to a more boutique oil like Amsoil, High Performance Lubricants, Schaefer’s, etc. just beware the rabbit hole that exists to snatch your soul as you obsess over centistokes, polyalphaolefins, and Novak Volatility…

    In all serious, a high quality synthetic doesn’t need any additives - like a quality steak doesn’t need steak sauce..
     
    blenton, May 22, 2025 at 11:57 PM
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    Tunrod, SD Surfer and Mdl like this.
  3. May 23, 2025 at 5:20 AM
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    MadMaxCanon

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    MadMaxCanon New Member

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    Too many, but not enough....
    MadMaxCanon, May 23, 2025 at 5:20 AM
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  4. May 23, 2025 at 9:23 AM
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    nkyrental

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    nkyrental New Member

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    As blenton said, no need for any additives. Synthetic gear lubes are pack with sulfurized additives, and phosphate ester additives, which are the key to gear lubricity.
     
    nkyrental, May 23, 2025 at 9:23 AM
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  5. May 23, 2025 at 9:06 PM
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    Jwood562

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    Jwood562 [OP] New Member

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    well said guys.

    I got some redline gear oil in today from Amazon and will be tackling this soon
     
    Jwood562, May 23, 2025 at 9:06 PM
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    ColoradoTJ likes this.
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