12-22-2016, 07:36 AM
I've so far used GN4 10w40 in my bike since it sees temps > 100*F. Works fine. I'm sure the T6 would be fine based on the complaint I read in this forum about its use and how my bike normally sounds when ridden in very hot weather (it sounds the way the gentleman described his bike did after filling with T6 leading me to believe this is totally normal).