Drive 55
Do this one thing and burn gas more efficiently.
On the highway, try not to exceed a speed of 55 miles per hour. Not only are you less likely to get into an accident, but the faster you drive, the more fuel your vehicle consumes per mile. That means more money and more greenhouse gases.
At 65 mph you're burning 10% more fuel than at 55, according to the American Council for an Energy-Efficient Economy. At 70 you lose 17% of your fuel economy, and at 75 it’s 25%. The numbers get worse from there.
Even though you may thrive off living in the fast lane, if the national speed limit were reset to 55, it would save 1 billion barrels of oil per year — more than the U.S. imports from the Persian Gulf.
The reason why is simple physics. As your engine heats up at higher speeds, it burns gas faster. Plus, all that increased resistance from air and road drag you down. Learn more here.
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