Toyota Announces Revolutionary Diesel After-Treatment System For Passenger Cars In Europe

27 February 2001

Toyota announced today that it aims to introduce a revolutionary diesel emissions purification system called DPNR (Diesel Particulate – NOx Reduction System) in passenger cars in Europe in 2003.

The new system, based on Toyota’s well known NOx storage reduction three-way catalyst technology, continuously and simultaneously reduces both particulate matter (PM) and nitrogen oxides (NOx) in diesel exhaust gas.

Toyota has for many years used oxidation catalysts and improved combustion technologies such as direct fuel injection, electronically controlled exhaust gas re-circulation (EGR) and electronically controlled fuel injection systems in order to reduce pollutants such as HC, CO, NOx and PM.

Now, for the first time, a single system has been devised that reduces both NOx and PM emissions at the same time, to combined levels not achieved before in diesel engines.

This simple and compact catalytic converter system will be fitted to a direct-injection diesel engine featuring the latest common rail, electronically controlled fuel injection technology. DPNR uses no additives and requires low sulphur fuel.


Download this release as a PDF below

Toyota Announces Revolutionary Diesel After-Treatment System For Passenger Cars In Europe

Media enquiries

Please click here to see the press contacts at Toyota (GB):

Show Press Contacts

For further information, please contact:

David Rogers

07825 280608 or by email at

General, alternative fuels and mobility media enquiries

David Crouch

07909 900 085 or by email at

General, fleet and motorsport media enquiries

Please understand that our press team only deal with enquiries from media representatives.

Toyota and Lexus Press Releases

To receive all Toyota and Lexus press information, please select the box below.

To update your profile type in your email address and press return. MailChimp will then send you an email confirming your details and you will then have the opportunity of amending your details.

* indicates required
All Toyota/Lexus News