The facts became clear on our road to 2010, when Cummins conducted tests comparing our EGR-only solution with our Selective Catalytic Reduction (SCR) system.

Cummins engines with SCR were clearly better in delivering fuel economy and driver satisfaction. Today, with over 38,000 EPA 2010 MidRange and Heavy-Duty engines produced and shipped, the facts prove that we made the right choice.

• Fact: Cummins 2010 ISB6.7 and ISC8.3 engines are delivering up to 3% better fuel economy than our 2007 product – and we expect the advantage versus 2010 EGR-only engines to be even better.
• Fact: Diesel Exhaust Fluid (DEF) is widely available at prices below that of diesel fuel. As supplies continue to increase and more 2010 SCR-equipped vehicles are on the road, prices and availability will continue to improve.
• Fact: Our SCR system works better due to copper zeolite technology. This technology reduces Nitrogen Oxides (NOx) emissions to near-zero levels and keeps DEF usage at a rate of approximately 2% of fuel consumption. If operators put 15,000 miles (24,140 km) per year on a bus getting 8 mpg, they’ll use only 37.5 gallons of DEF.
• Fact: Driver satisfaction and productivity are better due to the improved performance of Cummins engines with SCR.
• Fact: Reliability and uptime are better. Cummins engineering data show that this is the best engine launch ever.
• Fact: Every 2010 Cummins engine is backed by the biggest and best support network in the industry.

There is no question that our EPA 2010 engines with SCR are superior in performance and fuel economy to engines using an EGR-only solution. That translates into better driver satisfaction and reduced operating costs – two issues critical for bus operators today.

To get all the facts about Cummins engines for the bus market, visit cumminsengines.com.