1. 1 SCR 101: Getting Ready for EPA 2010 Moderated by: Guest Host Steve Sturgess, Executive Editor, Heavy Duty Trucking Presented by:

2. Educating the Trucking Industry on 2010 SCR Technology How we got here Technology Overview SCR’s impact Fuel Economy Driver Interface Engine Changes Aftertreatment Changes Maintenance Intervals SCR in use today Diesel Exhaust Fluid Where to get DEF How often you will refill DEF FAQ’s 2

3. 3 22 Years of Truck Emission Changes 1988 1991 1994 1998 2002/2004 2007 2010 0.01 0.2 Nitrogen Oxides - NO x (g/bhp-hr) Particulate Matter - PM (g/bhp-hr) By 2010, 65 trucks will emit the same amount of Pollutants as 1 truck did in 1988 We’ve Come a Long Way

4. Department4 Common Terms SCR = Selective Catalytic Reduction A vehicle emissions control technology to reduce diesel engine emissions for passenger cars, light & heavy duty trucks. Reduces NO x using a reducing agent by converting NO x into nitrogen, water and tiny amounts of carbon dioxide. DEF = Diesel Exhaust Fluid A solution of 32.5% automotive-grade urea and 67.5% purified water used in the SCR process; also referred to as AUS32 32.5% Urea 67.5% Water 100% DEF Diesel Exhaust Fluid BlueTec Daimler’s branded SCR emissions technology What Does That Mean? DPF = Diesel Particulate Filter Additional Aftertreatment hardware added to truck in 2007 to reduce the amount of Particulate Matter in the vehicle’s exhaust

5. Two Technologies to Meet 2010 Emissions 5 In-Cylinder EGR Selective Catalytic Reduction (SCR) SCR Catalyst

6. 6 2002-2007: EGR 2010: EGR Only How EGR Works: Basic Laws of Combustion Efficiency EGR Cool Air Pre 2002: No EGR EGR Cool Air Highest Firing Temperatures Highest NOx Highest Efficiency Lower Firing Temperatures Lower NOx Lower Efficiency Cool Air

7. Department7 = Exhaust SCR Catalyst NOx PM NOx Particulate Matter (PM) is trapped in the Diesel Particulate Filter (DPF) = Diesel Exhaust Fluid (DEF) PM DEF injected into the exhaust stream DEF NH3 DEF solution ‘hydrolyzes’ into ammonia gas (NH3) which mixes with the exhaust Ammonia (NH3) and Nitrogen Oxides (NOx) react in the catalyst to form Nitrogen and Water N2N2 H2OH2O Exhaust leaves the engine with the pollutants NOx and PM How SCR Works: Cleaning the Air After the Engine

8. Technology AttributeSCREGR Increased Combustion Efficiency Increased Fuel Economy Proven to meet the 0.2 g NOx Additional Hardware Use of Diesel Exhaust Fluid (DEF) 2010 Technology Comparison 8

9. 9

10. 10 4.8 5 5.2 5.4 5.6 5.8 6 19982002200420072010 Fuel Economy, MPG Series 60DD15 Economy For Your Business DD15 BlueTec Up to 5%

11. 11 PRE - EPA 2007EPA 2007EPA 2010 STOP ENGINE CHECK ENGINE STOP ENGINE CHECK ENGINE STOP ENGINE CHECK ENGINE High Exhaust Temperature Lam DPF Regeneration Lamp Malfunction Indicator Lamp (MIL) High Exhaust Temperature Lam DPF Regeneration Lamp Malfunction Indicator Lamp (MIL) Fuel and DEF Gauge Simplicity For Drivers Fuel Gauge

12. 12 Simplicity for Drivers EMPTY Malfunction Indicator Lamp (MIL) FULL DEF LevelGauge LampsDEF Lamp 75% to 100%4 green lightsoff 50% to 75%3 green lightsoff 25% to 50%2 green lightsoff 10% to 25%1 green lightoff 5% to 10%1 yellow lighton solid 0% to 5%1 red light flashingon flashing

13. 13 EPA 2007 DD15 EPA 2010 DD15 Simplicity Under the Hood

14. 14 Component DD15 Design Changes in 2010 Fuel system No major changes Camshaft Turbo Turbo compound Pistons / Rods Crankshaft Block / Head EGR Cooler Water Pump Oil / Coolant System Simplicity Under the Hood

15. 15 1-Box Configuration Simplicity For Packaging

16. 16 Maintenance ItemDD15 Duration / Capacity Oil and Filter Same as EPA07 Fuel Filter Valve Adjustment Crankcase Breather Diesel Particulate Filter Coolant Filter New DD15 Maintenance for EPA 2010 DEF Filter Every 2 years Air Bladder Fill Simplicity For Maintenance

17. 17 Experience for SCR SCR has Experience all over the World…Over 600,000 Trucks in operation SCR 2010 Test Fleet Have Performed Extremely Well Detroit Diesel Launched Our 2010 Engine in 2007…Tried and True With Nearly 2 Billion Customer Miles Already

18. Dealer / Distributor Where to Get Diesel Exhaust Fluid (DEF) IBC, 55-gallon drum, 2 gallon jug Home Terminal Intermediate Bulk Container (IBCs) or 2-2.5 gallon Jugs Truck Stop Fuel island filling

19. 19 3 Gallons 900 Miles 6 Gallons 1800 Miles 9 Gallons 2700 Miles 12 Gallons 3600 Miles DEF RANGE IN GALLONS 36912 How Far Can You Go?

20. SCR101 Summary Selective Catalytic Reduction (SCR) Is… The most efficient way to meet 2010 emissions Simple for truckers to operate and maintain Already in use today and heavily tested in the United States Diesel Exhaust Fluid (DEF) Is… Easy and economical to purchase and simple to use 20

21. Department21 Is DEF unsafe to handle? Is it flammable or hazardous? Material Safety Data Sheet (MSDS) Hazards Identification “Urea Solution is not Flammable” First Aid Measures “Wash area thoroughly with soap and water” Fire Fighting Measures “Urea solution is not flammable” Transportation Information “Urea solution is not listed by any US or Canadian transportation authority as a hazardous material…”

22. Department22 Does DEF become toxic at extremely high temperatures? “Urea does not become toxic at any temperature” “…at 122°F, DEF will still meet ISO specifications of less than 0.2% ammonia for at least 35 days. At that rate it would take more than 2 years to reach the ammonia level of household ammonia which is still not classified as toxic” James Spooner VP & GM Colonial Chemical Company

23. Department23 Will DEF freeze at 12°F? DEF will start to freeze at 12°F Engine coolant is used to thaw DEF in tank. System will function until DEF begins to flow. EPA Requires DEF flow within 70 minutes

24. 24 DEF Shelf Life at Constant Temperature (average temperature during month of July) 0 5 10 15 20 25 30 35 40 45 50 Los AngelesChicagoAtlantaPhoenix Months Will DEF go bad in my truck if I operate in a hot climate? At 86°F DEF has a shelf life of 1 YEAR! Source: Terra Industries 44 Months 74°F avg. July temp 41 Months 75°F avg. July temp 36 months 77°F avg. July temp 7 months 95°F avg. July temp

25. DEF is available through a variety of distribution networks today, at affordable prices. Detroit Diesel Test Fleet June 23, 2009: 275 Gallons @ $2.42/gal TA Saginaw, MI June 26, 2009 2.5 Gallons @ $3.99/gal Will I be able to get DEF at a reasonable price? Pilot Travel Center Brooks, OR Sept 14, 2009 Fuel Island Bulk Fill @ $2.79/gal

26. Department26 If I run out of DEF will my truck still start? When the DEF tank is empty “…the vehicle will be limited to 5 mph with inducement notification” UNITED STATES ENVIRONMENTAL PROTECTION AGENCY NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY SUBJECT: Certification Requirements for Heavy-Duty Diesel Engines Using Selective Catalyst Reduction (SCR) Technologies UNITED STATES ENVIRONMENTAL PROTECTION AGENCY NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY SUBJECT: Certification Requirements for Heavy-Duty Diesel Engines Using Selective Catalyst Reduction (SCR) Technologies The DEF gauge indicates the level of DEF in the tank and has a series of alerts when the tank is running low

27. Department27 Is the packaging of SCR system complicated? BlueTec Installation

28. 28 SCR 101: Getting Ready for EPA 2010 Presented By Detroit Diesel Moderated by Guest Host Steve Sturgess, Executive Editor, Heavy Duty Trucking