A class-action lawsuit accuses General Motors of rigging emission-control systems*on 2011–2016 Chevrolet Silverado HD and GMC Sierra HD pickups with GM’s Duramax turbo-diesel 6.6-liter V-8 engine. If the allegations are proved true, the environmental damage from these 705,000 trucks, which the lawsuit said emit two to five times the legal limit of nitrogen oxides (NOx) […]
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Hard NOx: General Motors Accused of Rigging Diesel-Pickup Emissions
