w88chy

iTrader: (2)

Time to change the Gearbox Oil on my '02 STi.

Is it worth spending a bit more and getting a more expensive oil such as Redline Shockproof, Mobil Mobilube 1 SHC, Castrol SAX etc etc

(taken from Opie's "Upgrade Manual Gearbox Oil")

Or is the general word that Castrol Syntrax is the one to use?

Suggestions..........

hmhaga

Tried expensive Motul Gear fully synthetic in my 6sp. Changed back to Syntrax

w88chy

iTrader: (2)

What was the issue with the Motul if you don't mind me asking?

JohnD

iTrader: (5)

It's not uncommon for the synchromesh not to take too kindly to full synthetic fluid. Stick to the Syntrax.

JohnD