15-04-2017, 01:31 PM
When it comes to London they seem to have a 'downer' on anything that doesn't meet Euro 4 standards, including petrol engine vehicles. https://www.london.gov.uk/press-releases...ity-charge . Let's hope that doesn't become commonplace in other cities.
To be honest, the whole thing around emissions standards & emissions tests seems to be a bit of a mess. Older cars probably are more polluting on the whole, but not necessarily so, as the MoT emissions test for one of my cars shows.
The previous year (when it had a brand new cat, new lambda, reconditioned injectors & some other bits) it recorded zero for CO on both the fast idle & natural idle tests. The garage thought their machine was broken & had to test it!
The thing that mystifies me is why many much newer vehicles (e.g. Ford ecoboosts) are tested to the same limits CO/HC when they were designed (supposedly.... if you trust manufacturers!) to meet much stricter standards. https://www.gov.uk/government/publicatio...d-vehicles
This is all about local air quality & doesn't take in to account the bigger picture. I was always led to believe that the embodied energy in the production of a car was so huge it was better to keep an old car going when you can. The thing is, a lot of that pollution occurs somewhere else and so is easily ignored.
To be honest, the whole thing around emissions standards & emissions tests seems to be a bit of a mess. Older cars probably are more polluting on the whole, but not necessarily so, as the MoT emissions test for one of my cars shows.
The previous year (when it had a brand new cat, new lambda, reconditioned injectors & some other bits) it recorded zero for CO on both the fast idle & natural idle tests. The garage thought their machine was broken & had to test it!
The thing that mystifies me is why many much newer vehicles (e.g. Ford ecoboosts) are tested to the same limits CO/HC when they were designed (supposedly.... if you trust manufacturers!) to meet much stricter standards. https://www.gov.uk/government/publicatio...d-vehicles
This is all about local air quality & doesn't take in to account the bigger picture. I was always led to believe that the embodied energy in the production of a car was so huge it was better to keep an old car going when you can. The thing is, a lot of that pollution occurs somewhere else and so is easily ignored.