1. Patrick Charbonneau VP Regulatory and Technology Affairs International Truck and Engine Corporation Diesel Emissions Summit II March 16, 2004

2. 2007 Technologies Today and Tomorrow Green Diesel Experience PM filters on Production School Buses Nox Adsorbers Cost Efficiency Virtual Sensors Taking advantage of computing power

3. Eye Chart WHATIS THEKEYTO 2007PRODUCTLIFE PARTICULATEFILTERREGENERATION

4. Better

5. Or Worse

6. Better

7. Or Worse

8. Soot filter traps all soot particles and hydrocarbon. It needs to burn off the trapped soot particles. A key measure of its performance is the balance point temperature. The balance point temperature varies from engine to engine. Balance point temperature: the engine operating condition and the exhaust temperature where soot burn off rate is greater than or equal to the engine soot output.

9. Green Diesel Technology TM School Bus: Introduced in 2001 Introduced in 2001

10. Green Diesel Technology ® School Bus: 2007 Technology Today International 530E 275HP diesel engine with special low-NOx calibration International 530E 275HP diesel engine with special low-NOx calibration Catalyzed diesel particulate filter Catalyzed diesel particulate filter Must use ultra-low-sulfur (<15ppm) diesel fuel Must use ultra-low-sulfur (<15ppm) diesel fuel EPA/CARB emission certifications granted March 2001 EPA/CARB emission certifications granted March 2001 Customer deliveries began in 2001 Customer deliveries began in 2001

11. PM Filter Regeneration

12. Green Diesel Field History No Warranty Claims on PM filter Superb Reliability Record Hundreds in Production In the Field Since 2001 Happy Customers Proper Regeneration = Reliable Product

13. Nox Adsorber Cost Improvements Efficiency Improvements

14. 2010 HD / 2009 LD P2P2 CDPF Tin P P1P1 Muffler NOx Adsorber NOx or UEGO Sensor Tout DOC NOx Adsorber

15. NOx Adsorber Progress Time History 0 15 25 35 50 65 75 85 100 April-01November-01May-02December-02June-03January-04 Precious Metals Index

16. Effect of Feed Gas NOx Emission Level on LNT Performance (HD FTP with Engine-aged LNT ) 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% Feed Gas High Feed Gas Low NOx (g/bhp-hp) Engine_out NOx (g/bhp-hr) Tailpipe NOx (g/bhp-hr) 60% NOx Reduction 75% NOx Reduction Same L/R Calibration LNT Absorbs About the Same Amount of NOx Regardless of Feed-gas Level, Resulting In Higher Efficiency with Lower Feed-gas Level

17. NOx Adsorber Conclusions Precious Metals Content continues to Decline Costs Improve The NOx Adsorber Acts like a NOx Capacitor Lower engine out NOx means Higher efficiency Catalyst

18. Virtual Sensors How would you like a device that: You dont maintain There is no warranty Its reliable Its durable It provides the results that you want Does not physically exist

19. NOx Virtual Sensor Validation

20. Conclusions PM filters are successful in commercial vehicles today Proper regeneration will provide functionality as well as reliability The typical class 8 truck load factors will induce passive regeneration (like Green Diesel Buses)

21. Conclusions NOx Adsorbers Cost Improvements = precious metals reductions Cost Improvements = Efficiency improvements Virtual Sensors Taking advantage of computing power It is very cost effective if nothing is there