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Thread: Gearbox hard to shift when cold

  1. 7th August 2014, 10:15 AM #11
    rick130's Avatar
    rick130
    rick130 is offline Moderator Gold Subscriber
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    Umm, the factory fill was a 75w-80 so why is a 75w-85 so outrageous ?
    Bear in mind it can take up to 1000km for the friction modifiers to embed themselves into the cone faces, how many km had yours done ?
    And BTW, which oil ?

    R380's can be idiosyncratic and some just shift better with an ATF but most find lubes like Castrol Syntrans 75w85 a vast improvement over an ATF, particularly when hot with a small penalty at sub zero temps.

    Personally I rather better gear and beating protection and no rattles and baulking when hot over a km or two of sightly slower shifts.
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  2. 7th August 2014, 06:06 PM #12
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    firsttracks
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    The guy at autobarn said the same thing, and we questioned penrite. Only drove about 250ks though. Cars done 272k. Oil was penrite.
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  3. 7th August 2014, 06:33 PM #13
    PAT303
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    I ran ATF in mine for 400,000km's simply because of the better shifting,I changed it every 40-50,000k's and it worked fine,when I moved to WA it started to grate when hot,40+ degree's over summer so I changed at Rick advice to Redline MTL,it took a few K's for it to settle but I find hot or cold the MTL works in my gearbox.I know quite a number of R380's running Penrite with happy owners,same for Castrol. Pat
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  4. 7th August 2014, 08:22 PM #14
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    firsttracks
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    Yeah I'd definitely like to try it, come summer
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