Diesel or Gas?

[afreeland90]

I’m considering a 25’ Tahoe but on the fence between gas or diesel. We live in between families so do quite a bit of interstate travel (300-350 mile trip every 6-8 weeks) and overall burn about 20K miles a year. Other than the long distance trips we just drive around locally in town. No towing. Obviously the better gas mileage on the diesel is appealing but curious if we drive enough to make the diesel worth it? And would the higher maintenance cost on the diesel deplete the savings on the better gas mileage?