ROUSH CleanTech Focused on Lowering NOx in Class 4-7 Vehicles

January 22, 2019

By Todd Mouw, President Roush CleenTech

This past year, ROUSH CleanTech launched several new low-NOx innovations that further reduce harmful emissions. The company introduced an ultra-low NOx propane engine for Class 4-7 trucks in addition to its already low NOx offering. This 0.02 g/bhp-hr NOx engine is 90 percent cleaner than the current EPA’s most stringent heavy-duty engine standard. When this engine is fueled with renewable propane, it reaches near-zero emissions.

In addition, the company announced its entry into the electric vehicle market. It will be putting additional demos on the ground with strategic partners and customers as they continue development with a planned production launch in 2020.

Another innovation that will continue in the new year is ROUSH CleanTech’s pilot connected truck and bus program. The company is deploying this technology on a total of 900 propane trucks and school buses to help better understand customer duty cycles. This technology will be used longer term to enable even greater uptime and, therefore, an even more significant operational savings for customers.

To learn more about ROUSH CleanTech’s alternative-fuel vehicle technology that powers school buses and Ford commercial vehicles, please visit