Customer service Tire maintenance and change Tire maintenance Run Flat tires are heavier than other tires - does this affect fuel consumption? Run Flat tires are heavier than other tires - does this affect fuel consumption? Yes. The rolling resistance of a Run Flat tire is bigger than that of a tire with a normal construction. Was this article useful? By telling us your opinion you help us to develop our service. Yes No 2/4 found this article useful. If you didn't get an answer you can send feedback to our customer support. You might be interested also in... What is DSI?When should a tire be taken in for maintenance?How should tires be stored? View all category's articles