DETROIT --General Motors is leaning toward a controversial emissions system, urea injection, that enables diesel engines to meet tough pollution standards in place for 2009. The technology, also known ...

DETROIT -- For the first time, the EPA is ready to hand drivers the responsibility for making sure a vehicle's emissions system works properly. All emissions systems now are passive and require no ...

Phillips Industries’ new Cincinnati-area distribution center is now shipping aftermarket trucking parts nationwide, aiming to speed up delivery times for customers.

In 2010, diesel engine manufacturers set a precedent when many of them added urea injection aftertreatments to their exhaust systems. This emissions solution meant another tank of fluid to fill (at ...

Selective catalytic reduction (SCR) systems employing a urea-water solution inject a measured dose of aqueous urea into exhaust gases, where thermal decomposition and hydrolysis generate ammonia. This ...