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Getting the best mileage possible is a concern for most every driver these days. Unfortunately, the marketplace is rife with scams and myths that, in the end, won’t get your vehicle one foot farther down the road.
There are ways you can improve your gas mileage. These, however, are not among them:
Premium gas. Unless your car is a high-performance model that specifies pricey premium, stick with less-expensive regular.
Gas-saving devices. Gizmos such as Fuel Genie, Fuel Doctor and the like make exorbitant claims about boosting gas mileage. “None of these work,” declares Mike Quincy of Consumer Reports.
Gas additives. Though some gas additives may help your mileage a little by cleaning your car’s fuel injector so the engine runs more efficiently, for the most part, additives are largely ineffective.
Air filters. With an older car, replacing a dirty air filter betters mileage. New cars automatically adjust the air-to-fuel ratio, keeping mileage constant.
Air conditioning. Yes, using the A/C makes your engine work harder. But opening the windows on the road increases aerodynamic drag. “Our recommendation is to do what you need to be comfortable,” Quincy says. “You’ll be more awake, alert and a better driver.”