#NitrogenOxides

General Motors on Thursday denied that its own internal testing revealed the Opel Zafira 1.6-liter diesel flouted European emissions and fuel economy standards, Bloomberg reported ( via Automotive News).

A German news magazine program, Monitor, said officials at Opel knew its midsize crossover polluted up to 15-percent more carbon dioxide than advertised, and that the automaker knew its fuel claims couldn’t be substantiated. The report also said that separate testing at a Swiss facility showed the Zafira exceeded advertised fuel consumption and emissions by 20 percent.

Or, in other words: Another chapter in the “ Everyone Cheated/Just Volkswagen Cheated” saga.

A German environmental group said Tuesday that its testing has revealed Renault’s Espace, when equipped with a 1.6-liter diesel engine, could emit up to 25 times the allowable limit of nitrogen oxides with a warm engine running on roads — or you know, the real world.

According to the New York Times, the Deutsche Umwelthilfe (DUH) didn’t directly accuse Renault of including cheating software in its cars — a la Volkswagen — but said the van polluted significantly less when the engine was cold. The results could show the schism between European testing standards — where tires can be over-inflated, doors taped up, batteries disconnected, seats removed — and real-world conditions.

Renault said in a statement Tuesday that its van complied with regulations and that tests done by researchers at the University of Bern “are not all compliant with European regulations.”