The U.S. Environmental Protection Agency is urging diesel engine makers to replace urea quality sensors, citing high failure rates and costly disruptions. Alternatives such as NOx sensors can be used ...

Diesel engines across agriculture, trucking and construction have been sidelined by a tiny part that was supposed to keep the air cleaner. After years of complaints about failure-prone diesel exhaust ...

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 ...

US diesel engines will no longer be required to have urea quality sensors (UQS) and will revert to using nitrous oxide (NOx) sensors, according to Environmental Protection Agency (EPA) guidance issued ...

EPA has announced that farm machinery manufacturers will have more flexibility in using different diesel exhaust fluid (DEF) sensors to reduce the risk of equipment shutdowns in the field. Farmers ...