i replaced my axle and then refilled the transmission with valvoline import multi atf. it is specd for dex 3 but my shifting is notchier than usual. saturns are notchy as is but its worse than usual. this is on the 98 sl2. what gives isnt there a thicker fluid i could use that would make the shifting more buttery. this transmission does not like shifting above 5 1/2 grand and does not usually shift to first without resistance unless it is stopped. what gives and what should i use?