Westport says natural gas engines cleaner than diesels

Oct. 10, 2002
Westport Innovations Inc. says that the Cummins Westport 15-liter ISXG and 11-liter ISMG natural gas powered engines are expected to have significantly lower emissions than the certification requirements for heavy-duty diesels laid down by EPA for October 2002. In a presentation to delegates at the World Natural Gas Vehicle conference in Washington, DC, CTO Patric Ouellette said the engines offer

Westport Innovations Inc. says that the Cummins Westport 15-liter ISXG and 11-liter ISMG natural gas powered engines are expected to have significantly lower emissions than the certification requirements for heavy-duty diesels laid down by EPA for October 2002.

In a presentation to delegates at the World Natural Gas Vehicle conference in Washington, DC, CTO Patric Ouellette said the engines offer the same performance and fuel efficiency as the most advanced diesel equivalent. In addition to the lower NOx, Ouellette said the engines would produce 60% less particulate matter and 20% less greenhouse gases than '02 diesels.

"We are making great strides in improving emissions levels from natural gas engines," Ouellette said. "Our analysis indicates that we can meet future emissions requirements while becoming increasingly cost competitive with diesel engines."

Seventeen trucks have been testing the ISXG in the field and have completed more than 1.4 million miles of service, Ouellette said. Fourteen of these vehicles are being operated by Norcal Waste Systems, a California refuse hauler with a fleet of 1,200 trucks, which has an additional nine ISXG engines on order for delivery in 2003.

About the Author

Tim Parry

Tim Parry is a former FleetOwner editor. 

Voice your opinion!

To join the conversation, and become an exclusive member of FleetOwner, create an account today!

Sponsored Recommendations

Take Control of Your Finances: A Practical Guide for Carriers in Trucking

This guide is designed to help you navigate these challenges, featuring strategies for automation, examples of effective tools, and a real-world success story from Phoenix Cargo...

Report: The 2024-2025 State Of Heavy-Duty Repair

Fullbay's fifth annual State of Heavy-Duty Repair compiles insights from almost 1,000 experts and over 3,500 shops. If you aren't leveraging these proven data points, your competition...

Guide For Managing Maintenance

The Guide for Managing Maintenance is a comprehensive resource designed to help fleet managers improve their maintenance operations, reduce downtime, and lower overall fleet costs...

The Road Ahead: 2025 Trucking and Fleet Insights

Discover how fleet operators are impacted by challenges like driver onboarding delays and complex compliance, and the critical need for technology to boost efficiency and cut ...