The U.S. Environmental Protection Agency on Wednesday issued new guidance requiring vehicle and equipment manufacturers to provide independent repair shops and consumers with the same diagnostic and ...

The Groq Python library provides convenient access to the Groq REST API from any Python 3.10+ application. The library includes type definitions for all request params and response fields, and offers ...

When billions of dollars are spent yearly by truckers and farmers because of diesel exhaust fluid issues, the calls for policy action regarding DEF have been loud. The process of reevaluating DEF ...

EPA has removed the DEF sensor requirement to address a major source of truck downtime and operational disruption. The change is expected to reduce unexpected derates and maintenance costs tied to ...

EPA approved guidance allowing diesel manufacturers to replace urea quality sensors with NOx sensors in DEF systems. The agency said faulty DEF sensors are a significant source of warranty claims and ...

The Environmental Protection Agency announced on March 27, 2026, that it is removing the diesel exhaust fluid sensor requirement for all diesel equipment, a decision the agency frames as a direct ...

The U.S. Environmental Protection Agency on Friday said it is dropping the requirement for diesel exhaust fluid (DEF) sensors as part of a truck's aftertreatment system in favor of monitoring actual ...

Depending on who you ask, “DEF” might as well be a four-letter word. The acronym stands for diesel exhaust fluid, a solution that breaks down nitrogen oxides and significantly reduces emissions from ...

The Environmental Protection Agency continues its crusade to roll back truck emission regulations. The latest move is a doubling down in its efforts to reform diesel exhaust fluid (DEF) rules. For ...

GM pickups powered by a Duramax diesel engine offer loads of benefits, including strong low-end torque and impressive real-world efficiency. However, diesel engines also require some specialized ...