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 ...
New guidance allows engine makers to replace problematic DEF sensors with NOx-based systems, aiming to reduce unnecessary derates and downtime caused by failures in the sensors designed to ...
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 ...
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