Why doesn't diesel exhaust fluid (DEF) work in extreme cold?

Diesel exhaust fluid is essential for keeping your engine functioning without letting off too many emissions. But it doesn't ...

New EPA Guidance On Diesel Exhaust Fluid (DEF)

Diesel owners who have wrestled with warning lights, sudden power loss or even complete shutdowns tied to diesel exhaust ...
AgWeb

More DEF Relief? EPA Takes New Action for Farmers and Truckers

On the heels of clarifying farmers’ right to repair their own equipment, EPA is escalating pressure on diesel engine manufacturers over ongoing Diesel Exhaust Fluid (DEF) system failures the ...
Trucking Info

EPA Targets DEF Sensor Failures Behind Truck Derates

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 ...
Motor Trend

What Is DEF and How Does It Work?

Long-haul truckers and diesel engine enthusiasts had to rethink their entire operations in 2010 when the Environmental Protection Agency mandated selective catalytic reduction technology. Selective ...
GM Authority

EPA To Investigate Diesel Engine DEF System Failures

The U.S. Environmental Protection Agency (EPA) is escalating its response to consumer complaints regarding Diesel Exhaust Fluid (DEF) system failures, announcing a new investigation aimed at major ...
AutoGuide

How To Clean Your DEF System and Help Prevent Costly Repairs

One of the many things we love about running a diesel engine is how long it will run. You can pack in a lot of mileage without needing major repair - as long as you take care of the motor and keep ...
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 ...
AutoGuide

EPA Eliminates Frustrating Diesel DEF System Rule

The U.S. Environmental Protection Agency is working to fix a long-standing headache for diesel truck and equipment operators: power cuts triggered by low diesel exhaust fluid levels. New rules will ...
Farm Progress

EPA’s DEF sensor rollback a win for diesel farm equipment

Farmers gain relief as EPA eliminates DEF sensor rules, cutting costs and reducing equipment failures during critical ...
Transport Topics

Nebraska Says Self-Repair Permitted on DEF Systems

Nebraska Attorney General Mike Hilgers supports the EPA announcement regarding DEF system failures. "Consumers have the right to repair their diesel equipment to ensure they function properly and ...
Yahoo

DEF sensors no longer required on trucks, other diesel equipment: EPA

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 ...