All, I took my 2018 GT PP1 to VIR today for its first track day. First off, it's an unbelievable car. It is light years ahead of my '14 GT and it will take me many years to be as good as this car is. With that being said, the day didn't go perfectly. -Session 1: Had the check engine light flicker a few times. Came in, checked temps, all were good, went back out on track and had no issues. -Session 2: Driving the car very hard trying to catch up to an '18 Grand Sport. After 3-4 hard laps, rear axle oil temperature warning comes up. Came in, it was 255ish and the red doesn't start til 300 so I wasn't overly worried about this. After all, it was 90* outside. -Session 3: Have the rear axle oil gauge front and center. Never goes above 215*. Everything is going great, when randomly going down the back straight my check engine light flickers again. I immediately pulled off track to investigate. By the time I had pulled back into the paddock, the light went away again. All temps were good, I could not find a single thing out of the norm. I'm not very concerned about the axle oil temp as it was very hot out there today and the PP2's actually recommend a differential cooler if you plan on tracking. What could the check engine be? Should I take it to Ford and see if they can find a code even though the light was only on for 15 seconds? I'm not driving this car 1/4th as hard as some of you all drive. My quickest lap may have been 2:20ish on the full course and I truthfully short shifted most of the day just to take it easy on the car. Any advice would be appreciated. Thanks guys!!