Originally Posted by swamp2
I think a conservative figure for tranny fluid swap without track use is about 30k. A more reasonable figure is probably 60k. With that much track use I might go with once a year after your season. These are very rough numbers. Check out something like Porsche GT3 MT fluid change intervals just for reference. I'm not saying the trannies are similar but that will be an example of a high performance (and typically run hard) MT. A DCT is basically a MT on the inside.
thx again Swamp, think might try it after this year as would be about 25k miles and over 30 track days on it, but will definitely look at some other cars as a soft reference. thx again