Drain the transmission oil & put in synthetic, makes a big difference in shifting, much smoother & quieter. I personally like "Redline" the best, I've used it in several different vehicles with excellent results (we're talking manual transmissions only now). look in your owners manual & see what oil it calls for (10-30 or whatever) & cross ref. it to the correct synthetic. You'll probably never have to change it again as the syn. is good for around 100k, really never wears out, never gets contaminated like engine oil.