DEF sensors are more than just emissions components—they are key tools for managing fluid costs and optimizing vehicle ...

Each Volvo Group unit said its flagship on-highway tractors began rolling off production lines in May with the updates ...

The pardons ended nine ordeals. The mandate that created them is still on the books, still in the field, and still pointed at the trucks that move America's military freight. The post EPA’s war on ...

On July 9, the Environmental Protection Agency signed a proposed rule that would stop new diesel engines from cutting a truck’s speed when the emissions system throws a fault. Instead of a derate, the ...

Daimler Truck North America is updating emissions software on about 330,000 Detroit-powered trucks, giving fleets more time to address diesel exhaust fluid system faults before severe derates take ...

Congress is fast-tracking a bipartisan DEF relief bill. The half in the press release stops trucks from derating to 5 mph over a false sensor code. The half you have to read the text to find suspends ...

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