Chevrolet and GMC are partnering with Power Solutions International, Inc. (PSI) to introduce heavy-duty pickups and full-size vans powered by 6.0-liter V-8 compressed natural gas (CNG) and liquefied petroleum gas (LPG)-capable engines starting in the first quarter of 2017. Chevrolet also will offer CNG and LPG versions of its new Low Cab Forward commercial truck. The announcement follows the selection of PSI, based in Wood Dale, Illinois, as General Motors Fleet’s preferred upfitter for CNG and LPG trucks. PSI is one of North America’s largest and most experienced providers of integrated turnkey alternative-fuel powertrain solutions.