R19 gearbox (5sp) oil type?
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  1. #1
    Fellow Frogger!
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    Default R19 gearbox (5sp) oil type?

    Any suggestions for suitable gearbox oil for an R19 5speed box (JB3).
    Castrol recommend Syntrax 75W90, but this isn't stocked by the local outlets.

    What oil grade is best for this box going by your experience?

    Thanks!
    spiz

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  2. #2
    Simon's Avatar
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    Any quality 75W/90 oil would be suitable. The 75W is required to reduce cold shift baulking which you may get with 80W/90.

    I'd try another outlet though, if they don't stock Castrol, they can't be very good......

  3. #3
    Fellow Frogger!
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    They stock Castrol trans oil, but only the EPX and VMX range, no syntrax.
    The EPX75W80 is recommended for the Phase 3 R19, but Syntrax
    for the Phase 2. Different gearbox in these models??

  4. #4
    Simon's Avatar
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    As far as I can see to all intents the gearbox between the Phase 2 and 3 is the same, apart from the Phase 3 having to cope with the marginally higher power.

    I'd say there must have been a specification change in the oil with the EPX having a higher specification than the Syntrax, but that is only a guess, as the Castrol website (www.castrol.com.au) isn't really specific in the specification page. So if you use the EPX you shouldn't have any problems, as from the website both the Syntrax and EPX have approval by Renault.

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