(RNN) - General Motors is being accused of designing a diesel engine that can cheat on emissions testing.
A civil lawsuit filed in Michigan on Thursday claims the diesel versions of the Chevrolet Silverado and GMC Sierra pickups produce higher levels of nitrous oxide when they are being driven than during tests.
The claim is similar to allegations the EPA and California regulators brought against Volkswagen and Fiat Chrysler as well as a case European regulators brought against French automaker Renault.
GM is denying the allegations.
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