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  • 2016 Lincoln MKX, 2015 Detroit Auto Show

    It's all about the asterisk, it turns out. Most buyers likely assume that the conditions for rating a new car's fuel economy and engine performance are identical. For at least one carmaker--Ford--and possibly others as well, that turns out not to be the case: Different gasoline formulations are used to test gas mileage than are used for engine output. DON'T MISS: EPA Issues New Guidelines For Automaker Fuel-Economy Testing A case in point is the engine output specifications on the website for the 2016 Lincoln MKX crossover utility vehicle fitted with the turbocharged 2.7-liter EcoBoost...

  • Gas pump
    Will Fuel Economy Rules Require Future Cars To Use Premium Gas?

    Premium gasoline offers potential fuel-economy benefits, but will consumers pay?

  • 2015 Ford Mustang GT Convertible
    2015 Ford Mustang EcoBoost: Less Power On Regular Gas

    Many carmakers are using smaller engines with turbochargers to try to boost fuel efficiency in new cars, but Ford has been among the most public in promoting the technology. Its EcoBoost line of engines all use gasoline direct injection and turbochargers to produce the same power as larger engines...

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