Inrecent years, independent research has helped clear up many myths within the Pontiac hobby. One area, however, that still remains shrouded in mystery is the midyear emissions system change that ...

In the past two months we've covered most of the emission systems that have appeared on recent automobiles. This month we'll conclude our discussion of these systems with those devices designed to ...

California Attorney General (AG) Rob Bonta and the California Air Resources Board (the Board) have reached a $46 million agreement with engine manufacturer Cummins Inc. to settle alleged violations of ...

Volvo on Thursday added a third D13 engine model to its product line, the newest one compliant with California Air Resources Board (CARB) 2024 Omnibus regulation requirements for low nitrogen oxide ...

The Department of Justice released new details of a settlement with engine manufacturer Cummins Inc. Wednesday that includes a mandatory recall of 600,000 Ram trucks, and that Cummins remedy ...

For our industry, the year 2027 means meeting lower NOx standards while using less fuel. Under old diesel design rules, this would be quite problematic because NOx forms at the high cylinder ...

The Environmental Protection Agency announced it is taking actions to ease the frustration and disruptions around sudden “derates” of diesel engines when they run out of diesel exhaust fluid or have a ...

Germany’s federal transportation authority, the KBA, has determined that certain F25-generation BMW X3s from the 2010 to 2014 model years used a shut-off device to control the emissions of diesel ...

Cummins released details of its 2027 X15 diesel engine, which it says meets EPA 2027 emissions requirements while improving fuel economy — and without adding weight or using more diesel exhaust fluid.