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 ...

Come 2010, engine manufacturers will have to meet the US Environmental Protection Agency's more stringent diesel emission standards. These regulations dramatically decrease discharges of particulate ...

We’ve shown you spy photos and shared what our sources have told us, but now GM has pulled back more of the veil surrounding its next-generation heavy-duty Duramax diesel V-8 engine program. The ...

Selective Catalytic Reduction (SCR) is an after treatment technology that uses a urea based diesel exhaust fluid (DEF) and a catalytic converter to significantly reduce oxides of nitrogen (NOx) ...

Several companies that blend diesel exhaust fluid, the urea solution used in truck engines with selective catalytic reduction systems, have had their blends certified by the American Petroleum ...

LOUISVILLE, Ky. — Cummins Emission Solutions is showcasing at the Mid-America Trucking Show, a new urea dosing system it says can improve performance of the selective catalytic reduction (SCR) system ...

With the advent of 2010 engine technology came urea-based diesel exhaust fluid. It’s now standard on all North American engines except those made by Navistar, which announced in July it also would ...

Cummins Inc. says it will use selective catalytic reduction on its 2010-model heavy duty engines, reversing a previous announcement that it would avoid the urea-dependent aftertreatment by using ...

Austin Energy replaced the selective catalytic reduction (SCR) catalyst twice over five years for its four peaker turbines. The duct modifications and injection grid redesign, combined with new ...

TAMPA, Fla. – It would be an understatement to suggest that truck exhaust is cleaner than ever. Tighter controls on the combustion process are limiting the gases that contribute to smog, while exhaust ...