Is the engine with no sparkplugs losing its spark? The diesel engine faces stiff headwinds by way of emissions compliance, vehicle electrification and a devastating Volkswagen cheating scandal. But automakers say they continue investing in new diesels.
Diesels just keep motoring along – for now.
Saddled with generally more expensive fuel, costly equipment to scrub emissions, high regulatory hurdles and an outdated reputation for being smoky and loud, light-duty diesel engines in the U.S. market have been treated for decades like the red-headed stepchild of the powertrain family.
’s ploy to sidestep emissions regulations, uncovered in 2015, gave compression-ignition powerplants the kind of black eye that never quite heals. FCA, , Renault, and Jaguar Land Rover diesel engines also are under scrutiny by authorities.
But don’t entirely count out diesels in the near term either, because automakers continue investing in their development.