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Can new diesel engines keep the particulate filter clear?

Is it true that new cars such as the Land Rover Discovery Sport use automatic engine management adjustments to keep the particulate filter clear even if no long journeys are done?

Asked on 18 July 2022 by David Middleton

Answered by Lawrence Allan
Yes, many newer cars have active regeneration where the car will inject more fuel into the engine to increase the temperature and trigger particulate filter regeneration. It's not foolproof, though - we would always recommend once every 2-300 miles getting the car up to above 40mph for at least 10-15 minutes to help keep it clean.
Tags: dpf diesels
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