Guideline on Buying Tires Wheel Balancing and the Performance of Your Car | Page 7

However, depending on your style of driving and road surfaces/conditions, you might find that you need the procedure done much sooner. If you are experiencing any or a combination of these symptoms, your wheels need balancing:  Your steering wheel vibrates at highway speeds  Your seats or floorboard vibrate at highway speed  Your tires display scalloped/cupped wear patterns Unnecessarily delaying tire repair procedures like wheel alignment and balancing can lead to an undesirable spiral effect of negative consequences. Here are the main benefits of wheel alignment and balancing especially in relation to your car performance: 1. Better fuel efficiency When your wheels are no properly aligned or balanced, your car has uneven traction which causes the engine to work harder thus consuming more fuel. TMC's S.11 Energy Conservation Study Group has published an updated RP1111 that outlines the relationship between truck/trailer components and fuel economy. The report says that properly balanced tires can save as much as 2.2% SAE J1326/RP 1102 Type II fuel.