Yeah, I feel ya on the "14 gallon tank" thing..... I bet I have only ever run mine down to a point for 12 gallons, one time..... on a 12 gallon fill I'm usually at about 350 miles or so.... It will get better after you have been driving it for about 1000 miles.... maybe a bit more. Just give it some time to get used to your driving habits.... the transmission is a "Smart Transmission" and learns for a while..... once it "knows" you, it quits adjusting so **** much.Just got my xb a month ago brand new. I'm not sure if I'm getting the correct range and miles per tank. I last filled up 12 gallons and my full tank before have me about 286 miles. Is this normal? Also why does it say its 14 gallon tank?