This is an interesting thread. Since we are on the subject, i have been given multiple answers when i ask this question what Trans Oil is being used with these temps. I have used DEXVI but after switching around a bit i tried Type F and it works very well nice tight crisp shifts while the dex feels a little lazy when temps are higher. Brian what has been in your trans for 5 years that has taken all that abuse? Also how much driving does the car see other than just driving to track and making handful of 1/4 mile hits. Any weekend crusises any traffic? i try to change out my trans fluid every 6 months to a year and i always break my head on what i should use. I was even told to use hydraulic fluid from John Deere. This is one area i really need some honest pro opinions. Shit 5 years and taking all that abuse something is working in that oil.
Lonnie, Dusty i would also like to hear your opinion,