trans fluid?

[spookie]

Using dextron VI fluid and having good service. Would ATI 20wt. be more stable with viscosity at temps in the 180* to 200* range.This is p-g with cooler.I bracket race, looking for repeatable proformance.

[bikeguy307]

We bracket race our car every weekend and often double enter. I have always ran NAPA brand type F. Nick and I drove my Roadster one night to the semi's and the win, with the time runs that was 17 passes in less than 7 hours. It only moved 2 numbers from 3pm to the finals at 10pm.

I guess what Im saying is if you run a good quality fluid, things should stay consistent for you.

And yes Nick was the winner and I bowed out in the semi's.

[dusterdave173]

Another Vote here for NAPA Type F  been racing with it for decades never an issue