From the December 2017 issue Enacted by Congress in 1975, the Corporate Average Fuel Economy law was designed to reduce gasoline use by improving fuel efficiency. Starting in 1978, cars had to achieve 18.0 mpg in testing. Truck standards came a year later, requiring 17.2 mpg from two-wheel-drive vehicles and 15.8 mpg from four-wheel-drivers. The […]
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