Hdaniel85
Full Access Member
So I put in 4 gallons of E85 from a local Chevron and filled the rest of my 36 gallon tank up with Chevron 91. I loaded the ECU/TCM tune and noticed a significant improvement, I was able to grab some more logs and sent them to wgr73 to assess. So far, this has woken up the truck in a good way! Its like driving a different truck. There's no harsh downshifting when braking hard, the transmission shifts very smooth between all gears, no hard shifts between 3-4 and 4-5 anymore.