Just looking over my owners manual and it says nothing about replacement the fluid in my manual transmission.  I have a 2000 Sunfire 2200.  Has anyone had ny experience with this?  Which fluid do I use, synthetic preffereably.  Any tips would be appreciated.
Thanks.
 
I have a 2000 cavalier with 130,000km and will be doing one soon, only to put in Mobil one synthetic
