Hi folks. We purchased our first diesel truck in February. A 2014 Sierra 3500 HD. I've been reading a lot about diesel trucks as it pertains to pulling a trailer, but what I haven't found is info...
I too use Gas Buddy App and filter diesel stations. I think I have only filled up my diesel once outside of my home area (fuel range is 700+ highway miles) and found a station that clearly advertised diesel price from the interstate. You should be aware there is "off Road" Diesel as well as various % of biodiesel blends. You should consult your owners manual for the highest % of biodiesel blend your truck is designed for. Both should be clearly marked on the pumps.