DPF regen

[milkloss]

I believe that road going vehicles will only regen under certain conditions. These conditions would most likely to be met in a rural environment: above a certain speed and running temp etc etc.

Does this mean people living in the more rural parts of the country are effectively having pollution relocated to their area and is this fair?

something I’ve always wondered.

 

[colhonk]

Yes. Us country folk do not matter and need to be removed so that urban peoples can plant trees, chuck their rubbish all over and feel good about themselves.

 

[scottrac]

I believe that road going vehicles will only regen under certain conditions. These conditions would most likely to be met in a rural environment: above a certain speed and running temp etc etc.

Does this mean people living in the more rural parts of the country are effectively having pollution relocated to their area and is this fair?

something I’ve always wondered.

you are right in that they only regen in certain conditions but the idea of the dpf is to collect the soot and burn it off out of villages etc,most will only regen when they see over half a tank of fuel,up to running temp and doing motorway speeds (60-70 for a period of time) The idea is the car has got to think its on a motorway not next to a school.
I say all this very tongue in cheek as in reality the very cars the government wanted you to buy by offering low road tax etc don't work in the real world as alot of people use them as shopping/school run cars so never get near the specs needed,and people don't seem to fill them with fuel like they used to (£10 here and £15 there)I'm only a small backstreet garage and I do about 3 forced regens (with laptop) a week!!!
If i'm doing that many how many are dealers doing which are usually in the middle of towns/cities!!
So the idea (unless you are a rep doing motorway miles each week) doesn't work

 

[Doing it for the kids]

Good post!

In the last 2 months my truck has done more miles specifically to get out of limp mode than actually doing its usual stuff. Drives me mad.

Like all these government ideas, the theory works well but often doesn’t work in reality, especially to us minorities.

I don’t think the idea was to dump pollution in the sticks but burn it in the best conditions

 

[Timbo]

I believe that road going vehicles will only regen under certain conditions. These conditions would most likely to be met in a rural environment: above a certain speed and running temp etc etc.

Does this mean people living in the more rural parts of the country are effectively having pollution relocated to their area and is this fair?

something I’ve always wondered.

Quite often yes. Some vehicles are more needy than others.

 

[ollie989898]

All a DPF does is collect large (visible) soot particles and then burn them into a much smaller particle form that can't be detected. We're still burning ancient hydrocarbon reserves. It is madness when you think about it really. Electric cars for the masses cannot come soon enough really. Mankind will still be be burning something in order to make the modern world work but it won't be happening in the same places that people life, so less health effects.

I do not believe DPFs should be used on heavy equipment except when they are used in urban areas. So quarry and agricultural plant should be free of them IMO.

Agriculture should be ditching fossil diesel and going to HVO anyway.

 

[scottrac]

The thing that makes it crazy is plant has a button for you to press to make it regen<let me think where are lots of diggers/dumpers etc??? Oh yeah building housing estates in villages near schools !!!

 

[Cowabunga]

I believe that road going vehicles will only regen under certain conditions. These conditions would most likely to be met in a rural environment: above a certain speed and running temp etc etc.

Does this mean people living in the more rural parts of the country are effectively having pollution relocated to their area and is this fair?

something I’ve always wondered.

I have and do run several cars with DPF’s and have yet to have an issue even when doing four mile round trips for weeks on end. Drive normally and do the occasional five mile trip with the revs around 2000 or so and most vehicles should regen perfectly adequately. People who consistently cover only short journeys, live in town, or pootle about at near engine idle speed should not be running a modern Diesel engine.

Modern petrol engines fitted with particulate filters, of which there are quite a few models these days, need worry even less, because petrol exhaust temperatures are high enough soon enough for them to be very reliable indeed.

Certain very poorly designed vehicles like pre-facelift transverse Ingenium Diesel engines in JLR’s smaller vehicles are very likely to give trouble. This is due to a basic design fault where the DPF is remotely mounted, far from the exhaust manifold, allowing the gas to cool below an acceptable threshold thus inhibiting a burn cycle. These vehicles are best avoided unless plenty of 20 mile+ trips are driven at a fair lick of speed, ideally up a fair gradient.

High engine rpm will not help the regen process. Running maximum torque [2000rpm under load] will enable the highest effective exhaust gas temperature for a successful regeneration burn. Towing helps a lot.

 

[JeepJeep]

Had a pressure sensor go on Ford Tdci last week.. Limp Mode.

Data showing DPF Full but couldn't force a regen. New Pressure sensor and regen completed.