A Roseville company that sells performance parts for diesel trucks pleaded guilty to criminal charges of tampering with emission control systems and agreed to pay $1 million in criminal fines and ...

SACRAMENTO, Calif. (AP) — A California company will pay $1 million for violating federal environmental laws by making and selling devices that defeated smog controls on diesel trucks, prosecutors ...

Aug. 1—If you've ever been behind a lifted pickup truck that spews out dark clouds of smoke in what is often referred to as "rolling coal," then chances are that the truck you're seeing could have ...

Yet another tuning shop has been fined as part of the U.S. Environmental Protection Agency’s ongoing war on diesel emissions defeat devices. At the receiving end of the punishment this time around is ...

The Department of Justice announced this week that Sinister Mfg. Company, Inc., doing business as Sinister Diesel, pleaded guilty to criminal charges related to the emissions control defeat devices it ...

The US Justice Department says Sinister Diesel sold 39,792 defeat devices between 2015 and 2017, and at least 35,960 of those kits disabled exhaust gas recirculation systems. The EPA closed more than ...