Slowing down could make driving significantly cheaper. During the energy crisis of the 1970's a 55 mile per hour (mph) highway speed was instituted as a response to gas pumps running out of fuel. Today the most efficient speed remains in the 55 mph range. Although very unlikely that posted speeds will drop, making the decision to drive slower could save people a pretty penny. Driving fast affects your wallet so much that once you hit 60 mph on the highway, each additional 10 mph (70, 80, 90...) is equivalent to the price of gas rising by 54 cents a gallon. Roger Clark, a fuel economy engineer for General Motors says at highway speeds pushing air around takes up 40% of the vehicles energy. Drivers lose approximately 4 miles per gallon with each 10 mph jump in speed. [Source: CNN Money]
Slow Down & Save Some Money
Slowing down could make driving significantly cheaper. During the energy crisis of the 1970's a 55 mile per hour (mph) highway speed was instituted as a response to gas pumps running out of fuel. Today the most efficient speed remains in the 55 mph range. Although very unlikely that posted speeds will drop, making the decision to drive slower could save people a pretty penny. Driving fast affects your wallet so much that once you hit 60 mph on the highway, each additional 10 mph (70, 80, 90...) is equivalent to the price of gas rising by 54 cents a gallon. Roger Clark, a fuel economy engineer for General Motors says at highway speeds pushing air around takes up 40% of the vehicles energy. Drivers lose approximately 4 miles per gallon with each 10 mph jump in speed. [Source: CNN Money]
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