Motoring Discussion > Petrols emit more particulates than diesels Green Issues
Thread Author: PR Replies: 5
View Threaded 

New Thu 19 Dec 13 07:38 
 Petrols emit more particulates than diesels - PR
According to this report, modern GDI petrol engines now emit 10x more particulates than diesels, and the "petrol particulate filter" (PPF?) may be coming to a car near you soon...

europe.autonews.com/article/20131128/ANE/131129865/0/SEARCH#axzz2nu5h5dkv
Reply to this message | Report message
       
New Thu 19 Dec 13 09:03 
 Petrols emit more particulates than diesels - Slidingpillar
What the article does not say - and it's the most important bit, what size are the particles?

You can define a particle as two molecules stuck together, but that particle is of minor importance compared to the great big ones an old style diesel produces.
Reply to this message | Report message
       
New Thu 19 Dec 13 09:17 
 Petrols emit more particulates than diesels - CGNorwich
Surely its the small particles in exhaust that cause the problem, embedding deep in the lungs.

As i read it a filter would remove all particles, cost only 50 - 130 euros and not impair fuel efficiency. On that basis seems the way forward. What's not to like?
Reply to this message | Report message
       
New Thu 19 Dec 13 09:52 
 Petrols emit more particulates than diesels - NortonES2
The report on which the article is based also states "A range of vehicle environmental regulations are being undermined by carmakers manipulating testing conducted in the laboratory to produce results that are much lower than those achieved by the same car on the road. These include:
 Euro 5 limits for nitrogen oxide (NOx) emissions from diesel cars
 CO2 limits for cars
 Noise limits for cars."

tinyurl.com/nqbogqm
Reply to this message | Report message
       
New Thu 19 Dec 13 11:59 
 Petrols emit more particulates than diesels - Shiny
Yes, at work, they say they are 'required' to meet Euro 6b coming 1/9/2015.
Reply to this message | Report message
       
New Thu 19 Dec 13 13:19 
 Petrols emit more particulates than diesels - Slidingpillar
Given sales depend on lower emissions, I don't blame manufacturers for finding the most advantageous ways to test. Job of those who write the rules to do so in a way it's a level playing field.
Reply to this message | Report message
       
Latest Forum Posts