Ok so this is basically like clockwork. When I got to work in the morning my car seems to pull timing at the same time right after I get on the highway. The highway is about 2 miles from my house so usually by the time I get to the on ramp the temp needle is just about in the middle. So this morning I started logging as soon as I got on the onramp. I do not get on it hard or anything just moderatly and the timing is always pulled in 5th gear and sometimes 6th. And its not like when you just let it disappear, sometimes it starts counting down other times it just sits right on that magic and bounces around there until i take my foot off the gas. I don't really think its actually knock because you can't hear anything and I don't feel the car stutter. And according to this log it doesn't even really pull the timing like it says.