It is surprising that the overdrive works with the 80/90 oil as this
usually makes the clutch inside the O/d slip. I would suggest going to
engine oil, but preferably not the 10/50. I would suggest something a
little heavier - even a straight 40.
John
Joe Robson wrote:
>
> Hi,
>
> Thanks to all who advised me on my 100mile oil change on my new Holbay.
> Whilst looking in the Alpine Workshop manual, I noticed it says that
> the same oil specified for the engine (ie 10/50) should be used in the
> gearbox. I've always topped my gearbox up with 80 or 90w/50, I guess this
> is bad... I always assumed gearbox oil was for gearboxes, will I have
> dameaged my gearbox or overdrive? it seems fine.
>
> Thanks
>
> Joe
>
> 64 Alpine
> 69 Stiletto
> 78 Davrian
> London
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