Castrol Synthetic gear oil.

[Stuart Thomson <stuart.thomson@domain.elided>]

Sasha asked about Castrol synthetic gear oil in transaxle Alfa's.  I've got
a 75 which has had Castrol synthetic gear oil (the stuff for bikes) in it
for about 3 years.  I noticed a slightly slicker gear change, and a quicker
warm up period  during winter, but my 2nd gear syncro is pretty bad
(probably my driving style).

Cheers
Stuart Thomson
Werribee, Victoria, Australia

original post:
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Hi,

Any digest members have good or bad experiences using Castrol Synthetic
(75w/90) Gearbox oil in their transaxled Alfa's? I realise Redline
synthetic is the oil of choice for transaxled cars, but it is not
readily available here in Australia, and is to expensive to have sent
from the US. I have tried Valvoline synthetic in the past and was not
entirely happy with the level of improvement. Any idea's/opinions? The
gearbox in question has been rebuilt around 30,000km's ago, has no
synchro wear (probably due to my driving technique more than anything
else), but I have been running it on normal 80w/90 mineral oil and I
think it is time I upgraded for the sake of gearbox longetivity.

Thanks,

Sasha Nackovski- Whittlesea, Victoria, Australia.
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