fuel economy

Ford Motor Co. unveiled its new F-Series "Super Duty" truck on Thursday, saying the latest edition of its fleet and commercial trucks offers improved power and fuel economy.

Ford Motor Co. says it will offer its EcoBoost engine in 4-cyclinder vehicles starting next year in an effort to provide greater fuel economy to consumers without compromising on horsepower.

As summer continues to chug along, your plans for road trips may be slightly hampered by the usual rise of gasoline prices during the summer.

Here's a quick list of 15 ways you can keep fuel economy optimal during a season of weekend getaways.

New Chinese fuel economy rules would be even more stringent than the United States standards that President Obama is seeking to impose.

Washington plans to adopt California’s tough new auto emissions rules with its existing fuel economy limits as new national standard.

The Obama administration plans to combine California’s tough new auto-emissions rules with existing fuel economy limits to create a single new national standard.

A request for federal aid included a downward revision from an earlier application.