At this point i'm thinking m just going to flip a coin heads for type f tails for dexronIII, weighed the pro's and con's to each and they both have there good and bad points, but like a previous poster said, increasing clutch life sounds most important to me as well, and if type f helps increase the clutch life, then thats the fluid to run in my opinion, just wish my builder would agree because him telling me not to run type f is the only reason i have not chosen it