Bestnana, thanks for taking the time to submit a review. When new tires are installed on a vehicle the fuel efficiency will typically experience an initial drop compared with the worn tires that were removed. Over the life of the tires, all things being equal, the fuel efficiency should improve.

JS1626, we are sorry you have seen at drop in MPG with the CrossClimate2 tires. New tires having full tread depth will have more grip and rolling resistance in comparison to worn tires. As the new tires wear, the rolling resistance decreases. Over the life of the tires, all things being equal, the fuel efficiency should improve.