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Thread: Diff and transfer oils Discovery 4

  1. 7th November 2019, 10:16 AM #1
    coopers1969
    coopers1969 is offline Master Supporter
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    Diff and transfer oils Discovery 4

    Hi Guys
    i am looking to do all the diff and transfer oils in my Disco 4 3 litre 2010 i am going to use the
    Castrol Syntrax 70w90 long life in the front diff
    transfer case oil i am a little stuck on thinking royal purple syncromax transmission fluid
    rear E Diff castrol SAF carbon Mod Plus from the UK
    i have done the transmission with ZF6 fluid.

    how does this sound, i have read that people have used Penrite GL 5 pro gear oil for the front diff and transfer cases. does any one have recommendations for the above diffs and transmission.

    Cheers

    Adam.
    2010 D4 3litre twin turbo brand new motor 5km old on a 100,000km car. Kaymar rear bar, ARB front bar, Hannibal roof rack, Hella Predator Spot lights, long rand fuel tank, Traxide battery management. touring weapon.
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  2. 7th November 2019, 10:29 AM #2
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    Milton477
    Milton477 is offline Wizard Silver Subscriber
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    Here is what I used when I did mine:

    Changed the Transmission oils, colour compare pics.
    + 2016 D4 TDV6
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  3. 7th November 2019, 02:34 PM #3
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    shanegtr
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    I've been using royal purple syncromax in my transfer case for some time now. Previously I've used Penrite Pro Gear 75w/90 (synthetic) in my diffs, however the last change I've swapped to Penrite Gear oil 85W/140(mineral) as I want to track the wear between the two oils. For the record the front diff is a lot harder on the oil compared to the rear in my case, but I don't have a rear ediff either. As long as the oil you use meets a GL-5 spec then you should be fine in the front diff. With the rear e-diff I don't think theres much on the market that meets LR spec so you might be stuck hunting for the Castrol oil there
    Shane
    2005 D3 TDV6 loaded to the brim with 4 kids!
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  4. 7th November 2019, 05:27 PM #4
    Geedublya
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    You can get the e-diff oil from Holden part # GMH 92184900.
    Fuji white RRS L494 AB Gone
    2023 Ford Ranga
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  5. 7th November 2019, 07:04 PM #5
    josh.huber Guest
    Or penrite now too, on the shelf at super cheap.

    I just put this in both diffs saves me having two bottles and pumps.
    Transfer case I just buy the genuine as it's easy to get locally.
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  6. 11th November 2019, 11:57 PM #6
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    Eric SDV6SE
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    Quote Originally Posted by shanegtr View Post
    I've been using royal purple syncromax in my transfer case for some time now. Previously I've used Penrite Pro Gear 75w/90 (synthetic) in my diffs, however the last change I've swapped to Penrite Gear oil 85W/140(mineral) as I want to track the wear between the two oils. For the record the front diff is a lot harder on the oil compared to the rear in my case, but I don't have a rear ediff either. As long as the oil you use meets a GL-5 spec then you should be fine in the front diff. With the rear e-diff I don't think theres much on the market that meets LR spec so you might be stuck hunting for the Castrol oil there
    +1 on the Penrite progear in both diffs (no ediff), RP synchromax in the TC. Have done approx 25000km on that combo with no issues at all
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