Anybody else had this issue? 2019 HC 6.2L...added a exhaust and intake around 3k miles. Averaged around 14 to 18 mpg until my last 10k oil change. Now the 50 mile sample is putting me around 9 to 10 mpg. I'm so confused right now.
Any of you guys hate the fact that the running/driving light on the side of the turn signal turns off when flashing? Just makes me think the truck looks retarded when I obey the law. I remember with my Avalanche, a diode had to be crossed in the fuse box to keep them on. Anybody know or done anything?
I purchased one for my truck, even posted about it here. There is little to anything in the Can after 5k miles. My L87 appears to run pretty clean compared to my old 8.1L. My old Avalanche2500 used to fill the can every 2.5k miles. But I used to dog the hell out of it, and was at WoT alot.
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