dllhg

Started last time on hot day at Thunderhill. Goes into limp mode. Did it again week ago at laguna but it was only 75 degrees. I tried auto race mode for a session and heated up even faster. 10 min in. Went again yesterday same issue. 10 min then it adjusts redline much lower like 5k before it pops up showing overheating. No limp mode. Just do cool down then go few more laps.

maybe just need fresh fluid /and filter ? Recommendations ?