Morning Overview on MSN
EPA drops DEF sensor requirement after Trump push, reports say
The Environmental Protection Agency announced on March 27, 2026, that it is removing the diesel exhaust fluid sensor ...
Fast Lane Only on MSN
EPA urges diesel makers to drop failure-prone DEF quality sensors
Diesel engines across agriculture, trucking and construction have been sidelined by a tiny part that was supposed to keep the ...
Diesel owners who have wrestled with warning lights, sudden power loss or even complete shutdowns tied to diesel exhaust ...
New guidance allows engine makers to replace problematic DEF sensors with NOx-based systems, aiming to reduce unnecessary ...
[Stay on top of transportation news: Get TTNews in your inbox.] Ongoing shortages of replacement parts for failed diesel exhaust fluid quality sensors are believed to be causing thousands of trucks ...
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 ...
PACCAR has patented a method to evaluate Diesel Exhaust Fluid (DEF) quality in emissions aftertreatment systems. By analyzing NOx conversion efficiency in SCR units, the system adjusts DEF dosing to ...
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