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Thread: Gear Oil etc

  1. #1
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    Gear Oil etc

    I'm looking to replace the oil in the diffs/gear box /trf box and swivel hubs for the 74 109. I'm confused as to whether one type will do all, or whether I need to get different types for the diffs/trf box etc. Can someone put me right please? I popped into REPCO and asked for EP90 GL4 but I got a lot of head scratching.
    cheers,
    D
    1957 88 Petrol (Chumlee)
    1960 88 Petrol (Darwin)
    1975 88 Diesel (Mutley)

  2. #2
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    hard to come by

    i use gulf western sae90 these days from supercheap $99 last time i bought it a few weeks ago

    prior i was using havoline 80/90

    best stuff i ever found was morris lubricants sae90

    but they moved to melbourne so i stopped buying it.
    2007 Discovery 3 SE7 TDV6 2.7
    2012 SZ Territory TX 2.7 TDCi

    "Make the lie big, make it simple, keep saying it, and eventually they will believe it." -- a warning from Adolf Hitler
    "If you don't have a sense of humour, you probably don't have any sense at all!" -- a wise observation by someone else
    'If everyone colludes in believing that war is the norm, nobody will recognize the imperative of peace." -- Anne Deveson
    “What you leave behind is not what is engraved in stone monuments, but what is woven into the lives of others.” - Pericles
    "We can ignore reality, but we cannot ignore the consequences of ignoring reality.” – Ayn Rand
    "The happiness of your life depends upon the quality of your thoughts." Marcus Aurelius

  3. #3
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    Allestree , its all good.
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    Find your local Roberts store and price up a 20 Ltr drum of Castrol epx 80 /90. That's a one stop shop for your gear oil needs and at $99 a drum much cheaper than buying little bottles.
    '99 Tdi 300 130 Twin Cab
    When I'm here I want to be out there.

  4. #4
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    Castrol epx 80 /90 is GL-5, and therefore not suitable for Series gearboxes.
    .W.

  5. #5
    C00P Guest
    I use 75W/85 gear oil(Nulon synthetic) in the transmission, which is the closest I can get to the EP90 spec without going to a GL-5 or paying big bucks. I use a fully synthetic oil in the gearbox as I've found it gets quite hot when worked hard (eg pulling a camper trailer around Tassie) and I believe synthetic oils tolerate heat better. I've found that on a long climb with the trailer on behind I can't put my hand on the gearbox housing after a while.

    Cheers

    C00P

  6. #6
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    Hi Dark,
    I got this from Repco.
    $12 per ltr.

    https://www.penriteoil.com.au/produc...id_products=80

    whitehillbilly

  7. #7
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    Quote Originally Posted by whitehillbilly64 View Post
    Hi Dark,
    I got this from Repco.
    $12 per ltr.

    https://www.penriteoil.com.au/produc...id_products=80

    whitehillbilly

    for everything Mate or just the gear and transfer box?
    cheers,
    D
    1957 88 Petrol (Chumlee)
    1960 88 Petrol (Darwin)
    1975 88 Diesel (Mutley)

  8. #8
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    Just gear and transfer box.
    That what needs the GL-4.
    I put it in the overdrive also.

    whitehillbilly

  9. #9
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    OK - understood re the GL4. I'm, getting there slowly!
    Thanks.
    cheers,
    D
    1957 88 Petrol (Chumlee)
    1960 88 Petrol (Darwin)
    1975 88 Diesel (Mutley)

  10. #10
    Join Date
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    Quote Originally Posted by B.S.F. View Post
    Castrol epx 80 /90 is GL-5, and therefore not suitable for Series gearboxes.
    .W.
    Have anyone actually seen gl5 oil cause a problem and I not interested in heresay.... Has anyone here actually seen it cause an issue?

    Because I have been using gl5 for a long time now and am yet to see an issue.... Touch wood...
    2007 Discovery 3 SE7 TDV6 2.7
    2012 SZ Territory TX 2.7 TDCi

    "Make the lie big, make it simple, keep saying it, and eventually they will believe it." -- a warning from Adolf Hitler
    "If you don't have a sense of humour, you probably don't have any sense at all!" -- a wise observation by someone else
    'If everyone colludes in believing that war is the norm, nobody will recognize the imperative of peace." -- Anne Deveson
    “What you leave behind is not what is engraved in stone monuments, but what is woven into the lives of others.” - Pericles
    "We can ignore reality, but we cannot ignore the consequences of ignoring reality.” – Ayn Rand
    "The happiness of your life depends upon the quality of your thoughts." Marcus Aurelius

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