Using my new set of STRi gauges, I noticed what I thought was high oil temps throughout my April 16th trackday. Outside temps were no higher than 72, so it's going to get a lot hotter here in the midwest! To this point, I have been using the Mitsubishi recommended Mobil 1 5w30. The oil temps I noted were:
190 - cruising at ~75mph on the interstate
210-220 - Tracking in a light rain with ambient temp 55
235+ - Tracking with ambient temp 70
So, I hooked up with Andy from AMSOil for some fancy 10w40 oil to help control temps and better protect the Evo's very hard working engine. I'll report back on engine temps after my My 16-17 track weekend!