Columbus, Ind. (February 9, 2009) -

Cummins Inc. (NYSE: CMI) announces the approval of B20 biodiesel blend for use with 19- to 78-liter high-horsepower engine platforms manufactured after January 1, 2008. This approval provides a significant expansion of Cummins engine compatibility with B20 usage, bringing the environmental benefits of using a 20 percent renewable fuel blend to high-horsepower applications in mining, oil and gas, rail, industrial and power generation markets.
 
Cummins high-horsepower engines approved for use with B20 biodiesel include the Quantum Series engine platforms from the QSK19 to the QSK78, covering a wide 506- to 3500-hp range (377 to 2610 kW). Cummins K Series engine platforms from the K19 to the K2000E are also approved for use with B20 biodiesel across a 450- to 2000-hp range (336 to 1491 kW).

These high-horsepower engines will join Cummins EPA Tier 3 and EU Stage IIIA industrial engines already B20-approved down to the 80-hp (60 kW) QSB3.3.

“All the necessary components in our high-horsepower engine platforms built after January 1, 2008, are biodiesel compatible, enabling our customers an easy transition to biodiesel blends up to B20 with a few simple procedures,” said Jim Trueblood, Cummins Vice-President, High-Horsepower Engineering.

“Following extensive review and fuel testing with B20 on these engines over the last couple of years, we can ensure that the same durability and reliability our customers depend on today using petroleum-based diesel fuel will be unaffected when switching to B20 biodiesel,” Trueblood added.

Cummins requires that biodiesel fuel blends above B5 and up to B20 used in all Cummins engines are purchased from BQ-9000-certified suppliers and meet both the revised ASTM D6751 and the new ASTM D7467 standards or equivalent international specifications.

“We are delighted to provide our customers with the option of using B20 biodiesel as an alternative and renewable fuel for high-horsepower applications,” said Edward Lyford-Pike, Chief Engineer, Cummins Alternative Fuel Program.
 
“Biodiesel is a manufactured fuel produced from vegetable oils derived from organic sources and animal fats. Because biodiesel uses renewable resources as its origin, this provides the opportunity to reduce carbon emissions and helps to reduce dependence on petroleum-based diesel fuel.

“Cummins understands these environmental benefits and consequently we have worked diligently in completing all necessary testing and evaluations to ensure approval of B20 usage in our engines. This enables us to offer guidance and information to our customers on the proper use of biodiesel in Cummins engines. For example, a question-and-answer document is available on everytime.cummins.com for further information,” added Lyford-Pike.

Cummins continues participation in industry efforts aimed to improve the consistent quality of biodiesel. The availability of biodiesel from BQ-9000 Accredited Producers and Certified Marketers has increased significantly. Working closely with the American Society of Testing Materials has resulted in an improved B100 specification (ASTM D6751) that now requires a cold soak test and a new B20 specification (ASTM D7467) that includes an oxidation stability requirement.

About Cummins Inc.
Cummins Inc., a global power leader, is a corporation of complementary business units that design, manufacture, distribute and service engines and related technologies, including fuel systems, controls, air handling, filtration, emission solutions and electrical power generation systems. Headquartered in Columbus, Indiana (USA), Cummins serves customers in approximately 190 countries and territories through a network of more than 500 company-owned and independent distributor locations and approximately 5,200 dealer locations. Cummins reported net income of $801 million on sales of $14.34 billion in 2008. Press releases can be found at cummins.com or everytime.cummins.com.