Here is a clip I took this morning with a full tank of E85. The percentage is about 80% ethanol. My virtual sensor says about 59% this morning.
I didn't display all eight cylinders as I wanted to see the TP% and RPMs to compare to previous tests.
What I found out is the engine still hits the knock sensors when accelerating but far less than the 87 E10 I was testing in previous clips. In normal around town driving with normal acceleration I never picked up the knock sensors lighting up, only on sustained hard throttle situations, going up hill.
I will test E10 91 octane next.