Tire Efficiency: How Your Car Can Cruise on Less Gas from NRDC

As a Prius owner, I became much more in touch with things that caused change to my gas mileage. I am far from a 'hypermiler', but have averaged 50 mpg consistently over 120,000 miles of driving it. At that mpg level, change in mileage become far more visible. This blog post on the NRDC web site talks about the change in tire design that can influence a car's mileage. A tire change I made in the last year on the Prius demonstrated this to me, for the first time in 5 years of driving the Prius, my mileage over a tank of gas has dropped below the 50 mpg level. I saw over 7% drop in mpg due to these new tires. It is good to see more tire manufactures offering information about mpg effect of their tires and even better more of them making efficient tires.