Simple ways to boost your car's fuel economy

(KOMO file photo)

The way you drive can have a huge impact on the fuel economy you get. And with the average price for a gallon of regular selling for about $3.40 right now in Washington, according to AAA, you want to squeeze every mile out of each gallon.

You already know that power-driving – jack rabbit starts and stops – can significantly reduce fuel economy. Going too fast will also cut your mileage.

Tests by Consumer Reports show that speeding up from 55 to 75 miles per hour is like moving from a compact to a large SUV.

"Going from 55 to 65 mpg, you lose between 4 and 8 miles per gallon and increasing up to 75 mph meant you lose an additional 5 to 7 miles per gallon,” said Jon Linkow, Consumer Reports Deputy Auto Editor.

Something else that will waste gas – carrying things on the roof.

"Our advice is get rid of any roof rack and any kind of roof mounted items, if you're not using it,” Linkov said. “Around town it's not going to be a huge difference, but once you're on the highway, really try to eliminate having anything on the roof."

Consumer Reports tests show that even a roof rack with nothing attached can increase the aerodynamic drag and cut fuel economy.

More Info: How to save money on gas this summer

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