Thanks so much for your reply. I bought the 2500 AT4 HD Thursday night. I absolutely love it. I have close to 300 miles on it and it's been great. Does the regen occur at the same time every certain number of miles or does it occur at random times? How long does the regen take from start to finish? Thanks!
Do you think a 2500 HD Denali would be fine as a daily driver? I tow a 21 foot boat twice a year and a 2 place snowmobile trailer a few times a year. That's really it for towing so I wouldn't necessarily need it for towing but I love the truck. I'm coming from a 2016 Yukon Denali with the 6.2L. Thanks!