DETROIT (AP) — Highway gas mileage estimates for about one-third of all new vehicles sold in the U.S. will fall by one mile per gallon because the government has changed the way it calculates the ...

Running more miles this week than last week can put you at risk of injury—but how much is too much? The standard answer, ten percent, has its flaws: it can lead beginners to ramp up too slowly while ...

Delta is confident enough in its operations to gamble on a new formula for rewarding frequent flyers. Why is it making this change now, and will the action prove to be profitable or a mistake? A ...

Getting your Trinity Audio player ready... By Tom Krisher, AP Auto Writer DETROIT — Highway gas mileage estimates for about one-third of all new vehicles sold in the U.S. will fall by one mile per ...