Ripping the emissions system out of a diesel truck used to be the kind of decision that ended with a federal indictment, not ...

When the check-engine light snaps on, it is not a suggestion, it is your car’s way of saying something in the powertrain or emissions system needs attention. I see it as an early warning system that ...

Just a short time after reducing regulations regarding fuel and exhaust systems around diesel engines, the EPA seems to be ...

Some GM vehicles may not start, shut off, or run properly because of a faulty fuel pump control module. Here are the affected ...

A new over-the-air software update is now available to download for GM's full-size T1-based pickups, including the Chevy ...

A new asymmetry in the market means fuel prices won't fall quickly even if the shooting in the Iran war and Strait of Hormuz ...

Fleet operators should review the latest NHTSA recalls involving Volvo Trucks, Peterbilt, Kenworth, Orange EV, and ...

DOE's regional averages are drawn from its weekly national survey of about 400 diesel service centers. The stations are surveyed on Mondays and the results are reported late that day. DOE divides the ...