Took my totally stock 2016 GTPP to Buttonwillow a few weeks ago and on one session got a rear diff warning, as did the other GTPP there that day. What is it warning about, and what mods do I need to make it not happen?
I heat-wrapped my exhaust next to the differential. Also changed to Amsoil fluid. No overheating warnings for me so far! Have only ran the car in about 95 degree weather so far, nothing over 100 yet...
I'll be at buttonwillow in a couple weeks, hopefully no warning lights