I just changed to ATF yesterday. I am going to try the Dexron for a while, as many of you are using type F, someone has to try the Dex. I have always heard the rumor that using type F in GM transmissions will make the clutches bite firmer and that the Dexron makes the clutches engage smoother. Either way, I see no major harm going to happen . The bearings, gears and clutches are not going to suffer any lack of lubrication. I have been using Spectro Clutch saver and Belray Gear saver, both work just fine. I was hoping a side benifit will be better kickstart rachet engagement in cold weather. I have been riding that last few weekends, and the temperature has been about 35 to 40 degrees and my kickstart ratchet has been slipping until the engine gets hot. Post more when I know more.