Originally Posted by citrxj
What's the purpose of the fluid change? I did a quick search for "manual fluid" but nothing really.
Also, what other MT things should I be aware of?
Basically, a majority of members have found that the stock setup and fluids don't tend well to smooth even shifts, some crunchy ness, and even occassional gringding when shifting at high RPMs. Hyundai has since TSBed to switch to a different tranny oil to help, but you won't get it until and unless you do the 50K to 60K service where the tranny fluid is normally swapped.
So, the members on gencoupe started looking into cheap ways to fix the problem now. We found that by switching to a fully synthetic high grade tranny oil and bleeding the clutch to make sure there were no air bubbles in the line, it helped to smooth out shifts and notchiness that were being felt. Some even said it helped with the grinding at high RPMs although I personally have never really had this problem so I can't speak from experience as well as some members still stated they had the grinding after doing this fix idea.
Additionally, if you want a more precise shift through the gate without a vague "am I in the right gear" feeling, many a few including myself have purchased from TWM Performance their short throw shifter with weighted shift knob. This utilizes a shorter shifter lever with adjusted position to the linkage fulcrum that allows for less effort and more precise feel rowing through the gears. The weighted shift knob helps to offset the slightly harder push needed with the short throw shifter, which is normal because the offset of reducing the shifter length is more force, albeit not a lot, needed to push the shifter through the gate into gear.
I was personally happy with my manual trans and didn't have any problems once she got through the break in period and had time to wear the syncros and gears in. I just chose to do the above changes for even smoother and better shifting, and I have to say I love the difference.
Hope this helps to answer your questions. If not, keep em coming.
(I really wish we had rep points possible on this site lol)