For 10 years, diesels
lovers have had a reason to celebrate their engines a little bit more than before: filters that reduce pollution. Called Diesel Particulate Filters (DPF), the devices were first introduced by Peugeot
at the Frankfurt Motor Show
back in 1999. The lucky vehicle was a Peugeot 607. As you might know, DPFs come in two versions. Some of them, like the ones used by PSA, need a special additive, called Eolys. Others, like the ones used at Toyota
, store the pollutants in a chamber and burns them when necessary. Peugeot has sold 2.1 million cars with PDFs, 233,000 of them in Germany.
[Source: Auto News