PSA to Add Particulate Filter for Gasoline Engines

Following the lead of other European carmakers, PSA Group will begin equipping its gasoline direct injection (GDI) engines with particulate filters by the end of the year.

The devices, which are widely used in diesel engines, can capture as much as 75% of generated particulates, according to the carmaker. PSA will use the filters in all of its 3- and 4-cylinder GDI engines, which will be mated with either a new 6-speed manual transmission or an 8-speed automatic.

Last summer Volkswagen AG announced plans to use particulate filters in its GDI engines this year. Daimler AG has similar plans.

Although more fuel efficient than conventional port-injection units, GDI engines typically have higher particulate emissions because the design doesn’t allow for gasoline to fully mix with air in the combustion chamber.