3 ms·
Modern diesel engines are often equipped with a particulate filter to catch particles of soot in the exhaust gases. These filters have a self-cleaning regenerat
by jdietrich 3y ago
Modern diesel engines are often equipped with a particulate filter to catch particles of soot in the exhaust gases. These filters have a self-cleaning regeneration cycle, using the late injection of fuel to pyrolyse the captured soot. This works fine for typical driving patterns with a mix of highway and city use, but if the vehicle is only used for short low-speed journeys, the engine will never get hot enough for long enough to run a regeneration cycle and the filter will clog.
- gambiting 3y agoIt's a myth, or rather - this only really happend with early DPF implementations that the manufacturer didn't account for this(looking at you Peugeot/Citroen group). In pretty much every vehicle equipped with a DPF nowadays the cleaning cycle can be completed even with the vehicle switched off, so it doesn't matter if you do short or long journeys.