Manual Transmission Fluid

This may seem like a dumb question, but what kind of fluid is STF? I have a 1996 Grand Am GT with a 5 speed manual transmission and the 2.4l. I checked my transmission dip stick and it is a little low. The dip stick says to use STF and the manual just gives a GM (expensive) part number. What fluid do I use?

Thanks//Steve

ask a auto parts store they will get the right stuff for u