The 6.4-liter and 6.7-liter Power Stroke Diesel engines are different sizes and made by different manufacturers -- one by ...

Navistar emerged from the ashes of International Harvester in 1986 and was later snapped up by Volkswagen in 2021. VW has since spun the property off into a new division known as Scout Motors and will ...

Diesel engines, for all their rugged usefulness, can be tremendously polluting. They produce more NOx — nitrogen oxides-based emissions – than gasoline-fed cars, as well as more particulates, aka soot ...