ROUSH CleanTech Lowering NOx Levels From Propane Engines

School Transportation News

Last month, the California Air Resources Board (CARB) certified ROUSH CleanTech’s 6.8L V10 3V propane engines for school bus and commercial trucks to 0.05 g/bhp.hr, which is 75 percent cleaner than the U.S. EPA’s base standard of 0.20 grams of NOx. ROUSH added that it has begun installing the new low NOx engines in its Ford commercial vehicles and Blue Bird Vision propane school buses powered by 2017 model-year engines.

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