Hi folks. Proud owner of a gently used 2018 Denali with a 6.2 & 8 speed. 22k miles on the ticker and seems to run pretty good. Very smooth shifting, quiet, and decent power. I say decent because, well; it feels kinda lazy if I'm being honest. If I really mash the pedal it'll definitely motivate. I was kinda hoping though that being a 420 horse monster that I'd have to drive it somewhat conservatively. Our 2013 5.3L Suburban isn't going to win any races but I still feel like it's just more responsive. I haven't filled up the GMC yet, but I'm hoping maybe the dealer filled it up with 87 and this isn't it's normal self versus the likelihood that this is how GM tunes them and torque management is throwing shade on my new ride.
Anyway, great forum people; I spent many nights reading here before taking the plunge.