AAA tests show premium fuel benefits some vehicles, but comes at a high cost

Green Car Congress
By mmillikinDec 12, 2017, 5:00 am164 pts
Last year, nearly 1.5 million new vehicles sold in the United States recommend, but do not require, premium gasoline. The trend toward recommending or requiring higher-octane fuel continues to rise as manufacturers work toward meeting stringent CAFE (Corporate Average Fuel Economy) standards. According to new…

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