Best gear box oil ?

[Paul Smith]

Hi i was wondering what the best gearbox fluid is to use i'm gonna do a change on mine and want the best, keep the gearbox well lubricated and quiet.

Thanks

Paul

 

[mohammed]

i think its 75 90

 

[jowley]

75\90 semi synthetic

 

[Paul Smith]

would fully synthetic not be better? if you can get it?