LOUISVILLE, Ky. -- Dale Decker is a third-generation trucker in the family business, which started in 1931 with one Model B Ford truck. Since then, the Fort Dodge, Iowa-based Decker Truck Line has grown to more than 700 trucks and more than 1,400 trailers, with nine terminals in five states.

Decker found out about biodiesel several years ago. The more he learned, the more he wanted to try it.

"I appreciate the fact that biodiesel provides support for American farmers as a home grown fuel," said Decker, who is Industry & Government Relations Director for Decker Truck Line, Inc. He also said the added lubricity that biodiesel provides would help meet fuel lubricity requirements when used with the newly mandated Ultra Low Sulfur Diesel.

Decker Truck Line, Inc. is the first major trucking company to compare a soy biodiesel B20 blend to regular diesel in a comprehensive over-the-road test covering two million miles. Announced last fall, the "Two Million Mile Haul" has covered 350,000 miles towards the goal. Partners released interim results today at the Mid-America Trucking Show. In addition to Decker, partners in the Two Million Mile Haul include the Iowa Soybean Association, National Biodiesel Board, USDA, Iowa Central Community College and Renewable Energy Group.

Decker says so far, so good. In fact, he has seen substantial benefits.

"What we've observed so far is great performance in the particularly cold winter we just experienced, and reduced maintenance and engine wear benefits that equal or outweigh the slightly higher cost of the biodiesel blend," he said.

Decker Truck Line is using B20 biodiesel (20% biodiesel, 80% petroleum diesel) in 20 of the company's trucks, running from its terminal in Fort Dodge, Iowa, to either Chicago or Minneapolis. The trucks are Peterbilt 379s, 388s, and 389s, with mostly flatbed trailers. All trucks have Caterpillar C13 or C15 engines built to EPA 2004 and EPA 2007 emissions levels.