The particulate filter is pretty much mandatory in diesel cars these days. Its association with diesel-powered cars brought it the handle DPF, which stands for diesel particulate filter. Now, though, ...

Volkswagen has yet to get modifications to reduce the emissions of TDI diesel cars with illegal "defeat device" software approved by U.S. regulators. But while it continues to wrestle with that ...

Daimler AG, the company that owns Mercedes-Benz, already announced that it would gradually introduce particulate filters for its gasoline engines. Now, Volkswagen has decided to follow Daimler in this ...