Sector: LPG

ROUSH debuts low-NOx medium-duty LPG engine

ROUSH CleanTech is one of the most active developers of autogas engine technology in the US. The company's latest offering is targeted at class 4-7 (medium-duty) commercial vehicles, including our favourite school buses. The engine is by 75% cleaner than required.
New medium-duty LPG autogas engine by ROUSH CleanTech© ROUSH CleanTechGood has just become excellent!

The new engines have already been certified by the EPA (Environmental Protection Agency) and CARB (California Air Resources Board) and are ready for market launch. Nitrogen oxides emission level of these units stands at 0,05 g/bhp-hr (grams per brake horsepower per hour), well below the 0,2 g/bhp-hr standard required by the EPA. While nitrogen oxides are not responsible for climate change, they have more immediate effect on human health, causing asthma and other respiratory problems. The Dieselgate scandal, involving catching Volkswagen red-handed while cheating on emission levels, has done a lot to raise awareness of the issue.

The new units are based on Ford's 6,8-litre V10 with 3 valves per cylinder. ROUSH CleanTech already offers them on MY2017 Ford trucks and vans and Blue Bird Vision Autogas school buses. They will be just as affordable to run as ever, but even cleaner than to date. The Blue Bird Vision is already a bestseller on the school bus market – given its unchanged price with the new low-NOX engine, we expect it to secure even more contracts from environmentally conscious school districts.

Developing the lowest NOX propane engine sends a message that this fuel is comparable to other alternative fuels from a standpoint of emissions. With our nation’s ample supply of propane and the fuel’s favorable total cost of ownership, our propane autogas engine is the perfect mix of environmental and economic sustainability.

Todd Mouw, vice president of sales and marketing for ROUSH CleanTech


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Robert Markowski
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