Quote Originally Posted by Fivefingerdeathpunch View Post
Not sure why it baffles anyone.

This doesn't have to be spark knock. Vibrations or struggling against the torque converter can easily create false knock and have that show up in a log. E85 isn't the god of fuel to rule over all knock retard events.
First you claim it's false knock. Then you claim it's detonation/preignition.