Achates, Walmart Launch Opposed-Piston Engine Trial
The new engine built by Achates Power of San Diego is being put into service in a Peterbilt 579 Tractor as part of a fleet of vehicles operated by Walmart.
The Achates Power ultra-low-NOx engine is engineered to achieve superior fuel efficiency because of its lower heat losses, improved combustion and reduced pumping losses. It reduces carbon dioxide by 10%.
The engine delivers ultra-low NOx by managing exhaust-gas temperatures to ensure rapid catalyst light off and by maintaining aftertreatment temperatures at optimum operating conditions in all driving conditions, the company says.
This article originally in Wards Auto April 26, 2022