Psychology offers both descriptive and analytical accounts of human experience and behavior. Science champions the latter.

Weapons is a layered story told through different character perspectives, with a compelling metaphor at the heart of the film. In the very first scene, Weapons jumps right into its terrible ...

Diesel owners who have wrestled with warning lights, sudden power loss or even complete shutdowns tied to diesel exhaust fluid systems may finally be getting some relief. The U.S. Environmental ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. DEF sensors will no longer be required following EPA policy. (Photo: Jim Allen\FreightWaves) Diesel Exhaust Fluid sensors will no ...

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 EPA’s war on the dreaded diesel “limp mode” triggered by DEF systems just shifted into a much higher gear. While the initial focus centered on cleaning up the software for the 2027 model year and ...

The United States Environmental Protection Agency has changed its tune on diesel trucks under the current administration. Whereas previous versions of the EPA pursued massive penalties and even ...