I had a set of circumstances happen to me a few days ago that warrented an emergency change of front tires due to safety issues. I had to change the tires in a small po-dunk type town and they did not have Firestone Transforce Highway Tires. All they had were the All Terrain tires. I am gonna be stuck with these tires now along with the new set i'm gonna be putting on the back of the van real soon. I'm just wondering if the All Terrain tires are going to affect my fuel mileage and wear out a bit faster then the Highway Tire? If you have had any experience with these type of tires good/bad please post here and let me know if i'm gonna be stuck with junk for a year. Thanks for any answers to this question.