hey guys, i picked up a 2007 GMC Yukon XL Denali fully loaded for my family. cant fit 4 kids in a 5 passenger car so i finally did a trade for something nice. ill have pics later, just got home. the dealer even gave me a full tank of gas. this rig takes on 31 gallons! i drove about 50-60 miles and the needle barely moved off the "F". i must be dreaming or something. good luck to all you guys and keep the 300 spirit alive!