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ULEZ, over 40 years exempt, otherwise Euro 6 diesel, Sept 2015, or Euro 4 petrol, Jan 2005. Some manufacturers may have adopted slightly earlier. On air quality you should really get a Euro 6d when real world testing was introduced which meant it did what it said on the tin.


Or go hire car, thanks for the views on HiyaCar

malumbu Wrote:

-------------------------------------------------------

> ULEZ, over 40 years exempt, otherwise Euro 6

> diesel, Sept 2015, or Euro 4 petrol, Jan 2005.

> Some manufacturers may have adopted slightly

> earlier. On air quality you should really get a

> Euro 6d when real world testing was introduced

> which meant it did what it said on the tin.

>

> Or go hire car, thanks for the views on HiyaCar


Classic / historic car prices are about to explode 🤔 might be time to invest in a classic diesel land rover

It's not that simple. Modern diesels are more fuel efficient than petrol engines. So efficient that they grab nitrogen from the air which leads to pollution. Further, the combustion process, ignition under compression rather than through a spark, leads to particles of pollution (soot). On the latest versions of diesels the nitrogen oxides are converted back to harmless nitrogen, and the soot captured on filters to be burned off at a later date.


Petrol engines emissions were reduced through the adoption of fuel injection, and a three way catalyst. Much of this was driven by US environmental laws, following smogs in big cities like LA in the 70s. Funny that the US understood air quality, but not climate change.


Round town there was no great case for diesels as they are more appropriate for longer distances, where fuel economy and their power was more appropriate. But around 20 years ago manufacturers started to produce small engined diesel cars which the masses brought contributing to the pollution hotspots. The technology introduced to reduce pollution from diesel vehicles never worked as well as it should have, but much better now.


There are also those that drive diesel vehicles around that have faulty or removed equipment, you see them from time to time as you can see the fumes. Some garages have capitalised on this by saying that it is legal to remove equipment. And you can buy devices off ebay that can effectively bypass some of the technology. Various measures such as tighter MOTs and enforcement against dodgy garages are in place.


So not that simple. Best not have a car and just hire one, use a car club etc, when needs arise! Or get a horse and have your own manure. With a cart that is an excellent means to get to the allotment. Perhaps there is a horse and cart club.

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