RBC Capital Markets analyst Joseph Spak estimated that one-eighth of GM’s full-sized pickups have diesel engines,<br />and said "negative publicity" from the lawsuit could steer prospective buyers to Ford Motor Co or Fiat Chrysler’s Ram division.<br />According to the lawsuit, "on-road" emissions testing conducted for the plaintiffs found<br />that Duramax-engined trucks produced nitrogen oxide pollutants two to five times higher than allowed, and "many times" higher than gasoline-engined trucks.<br />(Reuters) - General Motors Co was accused in a lawsuit on Thursday of rigging hundreds of thousands of diesel<br />trucks with devices similar to those used by Volkswagen AG, to ensure they pass emissions tests.<br />It said GM used at least three "defeat devices" to ensure<br />that the trucks met federal and state emission standards, even if they generated more pollution in real-world driving.<br />They said they would not have bought, or would have paid less for, their respective 2011 Sierra<br />and 2016 Silverado trucks had they known about the alleged rigging<br />They include Mercedes-Benz parent Daimler AG, Fiat Chrysler Automobiles NV, Peugeot SA and Renault SA<br />GM shares were down 74 cents, or 2.2 percent, at $32.46 in afternoon trading, after earlier falling as much as 3.8 percent.
