I have the max tow package and sticker shows 36 gal. tank. I went to put a little gas in the truck this morning as I only had about 40 miles left in it (right up to E). I put $50 in which gave me about 12.9 gals. The needle however shows I've got a 1/2 tank, but my miles shows I have about 192 miles before E. Confused because 12 gal. should only be 1/3 tank and I swore with a full tank I'd have about 500 miles to E. So at 1/2 tank, miles to E should read about 250 miles. Is the truck that smart that it estimates miles to E based on my driving? What about 12 gal of gas showing 1/2 tank? I was only getting about 13 mpg previously but that was mixed in with some towing so I reset the mpg reading prior to getting gas this morning. Not it's showing 17.9 mpg. Wasn't sure where else to post this.