I am currently driving a 08 GMC Sierra 2500hd 6.0 with about 127k miles and i am currently looking to possibly upgrade to something a little newer and possibly switching over to a diesel just for the better fuel mileage on my long work trips (its been the last 2 summers 3+ hr drive every weekend, one way) and for the times i pull my camper for hunting.
So I am currently looking at a 2015 GMC Sierra 2500hd 6.6 Denali crew cab with about 190k for about $37k. I've never gone diesel, but have wanted to for awhile (i just couldn't pass up my 08 gaser at the time with 27k for like $29k like 8 years ago) amd i was just curious what yall think about the 15 Denali. The 190k scares me, but from what ive read online 300k is high mileage. I haven't tested the Denali out yet, but would like some input if anyone can help out.