Customer service Tire maintenance and change Changing tires 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 the most important feature of a summer tire?When are studded tires a good choice?How do I know where my tyres were made? View all category's articles