When Arctic air settles in, drivers of diesel pickups and highway fleets learn quickly that not all fuels behave the same.

If you use diesel fuel in cold weather, it has a chance of turning into a gel-like substance. Gasoline doesn't have this ...

When the turbocharger in Julie Kimball’s 2010 Audi A4 went out, she paid around $3,000 to replace it. The car was well out of ...

It’s the latest in a decade-long scandal involving accusations that software “defeat devices” made diesel vehicles seem ...

We rely on our pickup trucks to be ready to work at all times, and knowing how your engine type affects tire wear can help ...