Just bought an "11" F150 Platinum with 130,000 on it. The only mods I am aware of is aftermarket wheels and tires. Not sure of the size off the top of my head but nothing crazy as it is stock height. I am new to ford truck's and the ecoboost engine. Truck runs great but I am only seeing 12-14 mpg highway. The tires are part of the cause for that but truthfully I am just wondering "from actual truck owners", what I should be looking for along the lines of potential problems and what would you recommend doing to or checking on the truck to keep problems away. Any info is appreciated. Thank you.