TORONTO, Ont. — Clean air comes at a cost, and it involves the emissions-related changes to exhaust systems and engines, sometimes introducing added maintenance costs and reduced fuel economy in the process.
That’s led to one of the trucking industry’s worst-kept dirty secrets. Many truck owners are reprogramming electronic control modules to bypass SCR (selective catalytic reduction) systems, which reduce unwanted NOx by introducing diesel exhaust fluid to the combustion process.
JACKSON, TN — Navistar is disputing allegations that it didn’t thoroughly test MaxxForce EGR engines, in a case that saw former executive Jim Hebe testify that the company “did not test sh*t”, and a jury award a truck fleet US $30.8 million in damages.
NEW YORK — There’s now little doubt that the vast majority of engine manufacturers are gearing up for selective catalyst reduction (SCR) as the solution to meet the most stringent round of emission controls yet.
By this time next year you’ll be putting diesel exhaust fluid into most of your new engines. Here’s what you need to know about the stuff.
Navistar will soon offer the 6.7-liter Cummins ISB engine in International DuraStar medium-duty trucks and CE Series school buses, with initial production slated for December
NASHVILLE, Tenn. — Heavy-duty Cummins engines will not use selective catalytic reduction (SCR) to meet 2010 nitrous-oxide emissions limits like a handful of other engine makers. Nor will they need any other form of NOx aftertreatment.
GREENSBORO, N.C. — Volvo Trucks North America says it will continue to offer the 15-liter Cummins ISX engine certified for 2010 emissions standards in the Volvo VN.
WARRENVILLE, Ill. — Navistar has announced that the price tags on upcoming 2010- MaxxForce advanced EGR engines will $6,000 to $8,000 more.
LISLE, Ill. — Navistar has received certification from the U.S. Environmental Protection Agency (EPA) for its 13-liter heavy-duty engine with selective catalytic reduction
REDFORD, Mich. — Detroit Diesel Corporation has announced that it has surpassed seven million miles of testing on its BlueTec Selective Catalytic Reduction (SCR) technology.
TORONTO — It may not believe in SCR technology as an emissions solution for North America, but Navistar is apparently going with the aftertreatment strategy on its engines in Brazil.
Navistar moves away from EGR strategy to SCR, joining its competition and beginning work on building an EPA certified engine.