Some interesting reading on the 2010. .
Others Need to Add Diesel Exhaust Fluid — Ram Heavy Duty Diesel Pickups Do Not
Diesel-powered heavy duty pickup buyers need to know that Ram Heavy Duty 2500 and 3500, with the powerful Cummins® Turbo Diesel, offer a distinct advantage over Ford- and Chevrolet/GMC-equipped diesels in 2010.
Cummins-Ram Engineering Reduces Operating Requirements/Costs
Ram diesel powertrain engineers, working with Cummins, put forth extra effort to meet the more-stringent 2010 diesel emissions standards back in 2007. In January 2010, when Chevy/GMC and Ford finally address the 2010 requirements, their diesels will be equipped with Selective Catalytic Reduction (SCR) technology. Heavy-duty pickup shoppers should know this.
With SCR, a special catalyst uses urea to inject ammonia into the exhaust stream. This ammonia then reacts with the hot exhaust gases to create water and nitrogen. Drivers will need to monitor, purchase and add the urea solution as an operational requirement.
Diesel Exhaust Fluid (DEF) is the industry name for the urea fluid. It is typically composed of 67. 5% distilled water and 32. 5% urea. DEF consumption ranges between two to four gallons for every 100 gallons of diesel fuel. Depending on the manufacturer, when the vehicle runs out of DEF, the engine will either not start until DEF is added to the on-board tank or engine operation will be derated so the driver can “limp-in” to replenish the DEF. Ram Heavy Duty owners need not worry about replenishing the DEF. Chevrolet/GMC and Ford owners will need to maintain their DEF levels or face downtime.
Variable Geometery Turbocharger
One Less Thing to Worry About
For the heavy-duty pickup market, Ram and Cummins engineers selected cooled Exhaust Gas Recirculation (EGR) and the Variable Geometry Turbocharger (VGT), along with a particulate filter and NOx adsorber catalyst, to meet the 2010 standards.
Buyers should know the VGT is a key component as it has the ability to instantly provide the volumes of air required to take advantage of cooled EGR technology. Since heavy-duty pickups often have significant personal use mixed with commercial requirements, avoiding the need for additional owner obligations (monitoring/adding exhaust treatment fluid) was seen as an important customer benefit.
The redesigned 2011 Ram Chassis Cabs (due in 2010) will use the SCR technology requiring DEF. Since these vehicles are job-dedicated, adding DEF is seen as merely another operating requirement by these drivers.
The Ram-Cummins collaboration continues to maximize the benefits of diesel ownership for a wide spectrum of truck buyers.