The bill would prohibit federal requirements for emissions control devices and onboard diagnostic systems and not allow ...

The bill would remove the requirement for emissions control devices and onboard diagnostics systems and remove penalties for ...

Diesel is not innocent by any means, but it has been unduly vilified in comparison to gasoline. The dark smoke that was emitted from diesel trucks and buses looked ominous enough, but it was ...

A Roseville-based truck parts manufacturer on Tuesday agreed to pay $1 million after pleading guilty in Sacramento federal court to conspiracy and for making and selling illegal “defeat devices” that ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SACRAMENTO, Calif. (AP) — A California ...

GM has issued a Special Coverage bulletin for certain units of the 2023 GMC Sierra 1500 to address a potential issue with the engine coolant control valve.

David "Heavy D" Sparks, star of reality show "Diesel Brothers," has been arrested after a judge found him in contempt for ...

A view of Matadero Creek north of the Bol Park footbridge in Palo Alto. Photo by Sue Dremann. In an effort to rid Palo Alto’s Matadero Creek of the last vestiges of a diesel fuel spill that has ...