charles wrote:

In article , Tim Watts
wrote:
On 17/04/17 10:37, Huge wrote:
On 2017-04-17, Graeme wrote:
In message , Chris Hogg
writes

But particulate carbon isn't the only problem. Because of the hotter
combustion temperatures, diesels emit more NOx, which seems to be the
main point of issue ATM. I gather there may be catalytic NOx filters,
but the current fuss suggests they don't work very well.

Making a decision now is certainly difficult. We only manage 5-6,000
miles a year, minimum journey 10 miles, average 50 and, once a year,
500. All each way. I keep looking at the Dacia Duster, and have
spoken to as many drivers as possible, and have not yet found anyone
with a bad word to say about them, except that the diesel is
preferable to the petrol engine.

Very tempting, given the price.

I wouldn't buy a diesel at the moment. Not until the Government has
sorted out what its attitude towards them is going to be. You might
find there are a lot of place you're not allowed to take it.



I suspect all the places will be places I would never drive (eg centre
of massive cities like London).

waht about the taxis, delivery lorries, service buses, long distance
coaches, tourist coaches, railway locaomotives ? Are they all to be banned
as well?

It is possible (and easy from the DVLC database by ANPR) to identify and
penalise diesel cars, and the authorities have no reason whatever to be
consistent in their treatment of other static and vehicular diesel
engines. They can rationalise their policy if they want to, and the
rationalisation may even make sense. I've no idea what proportion of
diesel pollution comes from cars, but I am pretty sure it would harder
for a railway locomotive to be converted from diesel to petrol or
batteries than for a car.


--

Roger Hayter