Updated diesel engine software gives truck operators more time to address emissions-system issues while staying compliant ...

New enhancements for Freightliner and Western Star trucks with Detroit engines align with EPA’s revised guidance, reducing ...

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 ...

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Add Yahoo as a preferred source to see more of our stories on Google. Will the ability to stop using DEF sensors impact its consumption level? (Photo: Shutterstock) If a truck driver wants to save a ...

The U.S. Environmental Protection Agency (EPA) last week issued guidance that drops the requirement for Diesel Exhaust Fluid (DEF) sensors as part of a truck's aftertreatment system and allows truck ...

Recently the Environmental Protection Agency (EPA) announced that diesel exhaust fluid (DEF) quality sensors are not required on trucks. The American Trucking Associations (ATA) and others have argued ...

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 ...

New regulatory guidance for diesel engines could save U.S. industries billions of dollars for farmers and truckers, but clean-air advocates say it could pose a significant risk to public health. Lee ...

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 ...

Trump EPA removes diesel DEF quality sensor making diesels more reliable Posted: March 28, 2026 | Last updated: March 28, 2026 The Trump EPA announced today they are removing the DEF sensor for diesel ...

EPA has rescinded rules requiring Diesel Exhaust Fluid Urea Quality Sensors on diesel-powered vehicles and nonroad equipment. EPA Administrator Lee Zeldin said the change was meant to address ...