A new diesel version of Chevrolet's Silverado is giving the General Motors brand bragging rights for best highway mileage of any full-size pickup. GM says the rear-wheel-drive diesel will get 33 miles per gallon on the freeway and 23 in...

General Motors says it will ask the federal government for one national gas mileage standard, including a requirement that a percentage of auto companies' sales be zero-emissions vehicles. Mark Reuss, GM's executive vice president of product development, said the company...

The Trump administration's proposal to roll back national fuel economy standards was headed for its second public hearing a day after California officials and scores of speakers blasted it as a danger to the environment and public health. The second...

The Trump administration is overstating claims of auto safety and reduced costs in justifying its proposal to weaken Obama-era fuel economy requirements that were aimed at making cars more fuel efficient.On Thursday, the Environmental Protection Agency and

Citing safety, the Trump administration on Thursday proposed rolling back car-mileage standards, backing away from years of government efforts to cut Americans' trips to the gas station and reduce unhealthy, climate-changing tailpipe emissions.If the propo

President Donald Trump told leaders of the world's top automakers on Friday that he wants to see more cars built in the United States as his administration weighs plans to reduce gas mileage and pollution requirements enacted during the Obama...

Environmental regulators announced on Monday they will ease emissions standards for cars and trucks, saying that a timeline put in place by President Barack Obama was not appropriate and set standards too high.The Environmental Protection Agency said it co