Unfortunately I did not log the stock tune. Only have the first log of a diablotune.

So I got exxon gas. I am about 175 miles in on new gas, 93 still. Still have this Knock issue. Even though its about 4* its more pronounced in the engine sound. Slight dip in power, then after the shift to 3rd, hold on cuz truck opens like a beast. I have posted a couple of logs and csv files. More ...

Okay. I will try different one and get back with updates. Thanks for the quick reply.

Hey guys! I have a 4 degree KR in 2-3 gear @WOT. used gasredux to make recommended adjustment. swapped gas brand, BP to Shell, both 93, on Diablo Tune. Truck is 2008 GMC SD CC AWD L92. Anyway to get rid of this?