The news from the Environmental Protection Agency concerning aftertreatment system faults in heavy-duty diesel trucks Tuesday this week, as previously reported, urged software updates to processes for ...

"Inducement" is a word that is getting much play in the Selective Catalytic Reduction debate right now. What are inducements? Let's step back and consider the SCR process. The diesel engine produces ...

WASHINGTON — After getting the EPA to admit that the 2010 emissions rules for SCR engines need some tightening, Navistar is now calling on the agency to force a recall of those engines currently in ...

The Environmental Protection Agency announced it is taking actions to ease the frustration and disruptions around sudden “derates” of diesel engines when they run out of diesel exhaust fluid or have a ...