Hindi ko memorize ang intervals but they can be seen in the owner's manual of the vehicle. Correct me if I'm wrong, but from what I recall, interval of changing of transmission fluids is typically twice as long with manuals as compared with their automatic counterparts.
If you take good care of the AT car though, you most likely wouldn't be doing anything else other than fluid changes with regards to maintenance as is the case with our 1997 Granvia 4AT. You are most likely to encounter clutch assembly replacement with MT's which can be relatively expensive for older single mass flywheel transmissions (Once at around 80tkms and another at around 135tkms in our 2001 Revo diesel costing around 15-20k) or very expensive for newer dual mass flywheel transmissions.