VW in US about to be slapped with mammoth emissions fine

[abaxas]

Ermm, what about the petrol particulate matter?

A modern petrol car throws out 100s times more than modern diesels.

[kalniel]

Ermm, what about the petrol particulate matter?

A modern petrol car throws out 100s times more than modern diesels.

I've never heard that before. I thought even modern diesels throw out about 20x more than petrol [1].

[1]
http://www.channel4.com/info/press/n...l-4-dispatches

[Butcher]

Ermm, what about the petrol particulate matter?

A modern petrol car throws out 100s times more than modern diesels.

Not sure where you got that idea from. Check the report I linked, petrols and diesels both have low levels of particulates. Diesels used to be bad, but since Euro 5 when they started fitting DPFs the levels have been very low.

Not to mention, when was the last time you saw a petrol car blow a huge cloud of black smoke out the tailpipe?

[The Hand]

Just for the record, my dear mum's '09 plate VW Golf 2.0L TDI is affected by this fraud too. She got the letter yesterday confirming it... I doubt anyone at all believes the "it was only a couple of engineers responsible" line coming from the VW execs. Massive fraud with the nod coming from higher up. I wouldn't be surprised if a quite few hard drives are getting destroyed in VW systems as part of a company wide systems "upgrade".

[directhex]

**** VW in the ear.

The latest claim from their UK boss, in a grilling by UK parliament, is that nobody should have believed the emissions tests anyway therefore 0 extra pollution happened as a result of them cheating the tests (since the tests weren't reflecting on real life driving in the first place)

Bear in mind VW is one of the main companies which lobbied the EU to do lab-only emissions testing, not real-world driving.

[kalniel]

The first part I agree with - emissions tests are not designed to reflect real world, just a standardisation. The second - that cheating the tests is therefore of no consequences - is a complete non sequitur. It defeats the standardisation so means VW cars are no longer comparable to other cars.

[badass]

Ermm, what about the petrol particulate matter?

A modern petrol car throws out 100s times more than modern diesels.

Actually diesels throw out eleventy milllion times what petrols do. They also eat babies.

My statement is equally as valid and about as accurate as yours.

[abaxas]

Not to mention, when was the last time you saw a petrol car blow a huge cloud of black smoke out the tailpipe?

That black smoke isn't really and issue, it's the small particles you cant that are the problem.

Any modern direct injection petrol make the current crop of diesels look like a OCD suffers bathroom.

[kalniel]

Any modern direct injection petrol make the current crop of diesels look like a OCD suffers bathroom.

According to who though? I've previously linked a report saying the opposite - it seems particulate matter (of any size - it can be measured by total mass regardless of particle size) is less for petrols than for diesels.

[abaxas]

http://www.ft.com/cms/s/0/60b7cc8c-5...#axzz3ox0Logpi

Petrol had no control of particulates until euro 5.

https://www.theaa.com/motoring_advic...standards.html

Basicially, if you drive a petrol direct injection car that isn't euro 6 compliance, you are the worst polluter of them all.

[kalniel]

http://www.ft.com/cms/s/0/60b7cc8c-5...#axzz3ox0Logpi

Petrol had no control of particulates until euro 5.

https://www.theaa.com/motoring_advic...standards.html

Basicially, if you drive a petrol direct injection car that isn't euro 6 compliance, you are the worst polluter of them all.

You're not making any sense. The lack of a test limit doesn't mean you are therefore spewing lots, it means it's not enough of a problem to bother testing. As you can see now, at euro 6 petrols can easily hit under the limits without any need for particulate filters or complex downstream treatments.

Petrol particulates did increase when direct injection came in - a vast (percentage) increase over non-direct injection - but it's still a small absolute increase, and still far far below diesel levels. As you can see in Euro 5 they added a limit for direct injection for particulates that was exactly the same as for diesel, and cars met it without needing DPFs.

So have you got a link that shows petrols are worse than diesels?

[badass]

So have you got a link that shows petrols are worse than diesels?

Clearly not since it's complete rubbish.

[kalniel]

So CO2 emission test figures under the scope as well now. Including a small portion of petrol engines..

This almost certainly means me - I don't believe a 150bhp petrol engine can test at 108 g/km. But we'll see.

[DanceswithUnix]

So CO2 emission test figures under the scope as well now. Including a small portion of petrol engines..

This almost certainly means me - I don't believe a 150bhp petrol engine can test at 108 g/km. But we'll see.

With variable displacement (cylinder deactivation, variable geometry turbo, continuously variable intake valve timing) a petrol engine can peak 150bhp but run as a low compression 2 cylinder engine for cruising which gets the average right down. So should be is possible.

[abaxas]

Basically everyone has been lying about it. We all know that.

If we were serious about emissions we'd bad any car larger than a fiesta.

[kalniel]

If we were serious about emissions we'd bad any car larger than a fiesta.

It's the small cars test that are probably the issue in this latest thing.