I care haha ambient in the 90's?
Did your oil or coolant temps increase from the thicker core? I just don't have faith CTS tested their unit in hot weather haha
CTS is in Canada, so probably only really have cool weather available. I'm in cool weather also... maybe that's why I'm seeing the equal?
My oil temps range from 105 - 108 Celcius depending on how I drive and if there is stop and go traffic/highway. I use motul X-cess 5w40