Yeah... standard transmissions have gear oil, which you should check occasionally.. but it's basically just lube like in any other part of the car like suspension and axle joints, or your differential.
It doesn't leak like automatics will, nor does it need regular replacement like motor oil.
I think I have added oil to my suby's transmission one time ever... and it was out of curiosity of how to do it... and it sure didn't need much even over 200k.