GREEN BAY, WI – Paper Transport Inc., a Wisconsin-headquartered truckload carrier, said it has put into service two tractors with 12-liter prototype CNG engines produced by Cummins.
One engine is in a Kenworth truck and the other is in a Freightliner.
“The 12-liter CNG trucks are an important step forward for us as we look toward more widespread use of natural gas as a fuel for our trucks,” said Jeff Shefchik, president of Paper Transport.
The prototype engines provide equal horsepower and torque to engines commonly used in Class 8 trucks. The development of the higher-powered units will allow for use of CNG units in higher weight and environments where hills are a concern.
“The full use of CNG trucks had been somewhat limited by the fact that the 9-liter engine was all that was available for a 100-percent CNG power unit,” Shefchik said. “The 12-liter’s capability to handle steeper grades will be a nice feature.”
More of the 12-liter engines are scheduled for release in the early part of 2012. However, full production of the 12-liter model is not expected to begin until the first quarter 2013.
Paper Transport has been utilizing CNG tractors since February of 2010. They have over a million miles on units currently in use. Another 10 tractors are scheduled for delivery by the end of this month.