The U.S. Environmental Protection Agency (EPA) and California Air Resources Board (CARB) have certified the propane-powered S2G chassis from Freightliner Custom Chassis Corp. (FCCC).
Central to this 33,000 lbs. GVWR offering is a liquid propane autogas system from CleanFUEL USA and an 8.0-liter engine built by Powertrain Integration off a General Motors long block. This combination yields a CO rating that is 60% below EPA's standard for heavy-duty vehicles, and a NOx rating 20% lower than EPA standards.
With the EPA and CARB certifications in hand, the S2G can now be purchased and operated legally in all 50 states and in Canada.
‘We are thrilled with our emissions results and excited to move forward to production,’ says Wayne Moore, chief operating officer of CleanFUEL USA. ‘As the only propane autogas vehicle available on the market with a GVWR of 33,000 lbs., the S2G greatly expands fleet offerings using this clean and abundant alternative fuel.’
Available chassis platforms include a propane bobtail delivery vehicle and a propane autogas school bus from Thomas Built (the Saf-T-Liner C2). Full production is expected by early September, CleanFUEL USA says.