Mitchell Corp, Sands Fridge Lines and Murray Goulburn Cooperative, who each operate large fleets of long-distance trucks, will acquire four new Kenworth T404SAR trucks powered by 2008 model Cummins 15-litre engines incorporating Vancouver-based Westport’s LNG fuel technology. Emissions and performance tests will be performed to quantify greenhouse gas, noise, and regulated emissions benefits while demonstrating the performance and economic advantages of LNG in real world use in Australia.

"The price differential between diesel and LNG, combined with the very high mileage put on some of these trucks, could deliver over (C$121,000) in annual fuel cost savings per truck," stated Bruce Hodgins, Westport’s vice-president of Market Development. "Of course, LNG will also deliver lower nitrogen oxides, particulate matter and greenhouse gas emissions, including CO2, compared to operation on diesel fuel."

Depending on the duty cycle and the test protocol used, the company expects 15 to 20 percent reductions in greenhouse gases or approximately 130 tonnes per year on a tank-to-wheel basis for a truck operating 400,000 kilometres per year, adds Hodgins.

Westport will adapt the North American version of its LNG system for Australian engines and operating conditions. This will include delivery of higher horsepower and torque ratings of 550 hp / 1850 lb-ft and 485 hp / 1650 lb-ft, and certification to the Australian ADR 80/02 emissions standard.

The Alternative Fuels Conversion Programme is an Australian Government funding project aimed to reduce greenhouse gas emissions from heavy commercial by encouraging increased use of alternative fuels or hybrid diesel/electric engines. The AFCP allows the Australian trucking industry to explore whether the potential environmental and economic advantages of natural gas can be demonstrated in Australia’s harsh operating environment.