Testing confirmed that the vehicle complies with emissions standards at the temperature windows where the emissions test is performed for certification.
But the NOx emissions increase significantly when the temperature is below 68ºF or above 86ºF. This means that GM, using software supplied by Bosch, employs a “defeat device” that allows the vehicle to meet emissions standards in the testtemperature range. At all other times, NOx is allowed to be emitted in a much greater amount.
Its all politics and agendas unfortunately. I have said it since day 1, the whole VW thing was driven by politics and lawyers, not people wanting to keep the air clean.I don't understand why people hate diesels so much. Here you have an incredibly efficient internal combustion technology and it's all everyone can do to try and eliminate it. Where does the money trail lead? Who benefits from running diesel engines out of the US?
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Its all politics and agendas unfortunately. I have said it since day 1, the whole VW thing was driven by politics and lawyers, not people wanting to keep the air clean.
Pretty sure it's these jerks....I don't understand why people hate diesels so much. Here you have an incredibly efficient internal combustion technology and it's all everyone can do to try and eliminate it. Where does the money trail lead? Who benefits from running diesel engines out of the US?
??? These standards apply to ALL new cars. Not just diesels.Going after a relatively small group of cars
I was unaware of that... that IS wrong. Gassers should be held to the same standard.Gassers have no PM restriction. DI gassers smoke worse that pre-dpf diesels.
I sure hope the political pressure gets GM in a situation where the stock price drops significantly so I can load up again at $25/share or less. Plus, if truck inventory gets slammed, I can buy that diesel Colorado I want.So, will there be a stop sale on all GM diesel products, like there was for VW?
Buybacks too.
It's only fair.
Damage to your lungs and the rest of your body beyond tailpipe emissions only below courtesy of the GREET model (Argonne National Labs). Notice the real world life cycle environmental health damage from the BMW X5 diesel engine vs the gasoline hybrid vehicles ('Diesel @X5' vs SI HEV and PHEV categories)!
You're welcome, tikal.
Thanks to a comment by bhtooefr, I searched for, and was able to find, a document that provided damage cost factors for both urban and rural emission scenarios, albeit it is calculated for Ireland ("Air Pollutant Marginal Damage Values Guidebook for Ireland 2015"). I'm still not able to run the APEEP model, which would still probably provide the best estimate of each vehicle technology/fuel pathway.
GREET provides total and urban emissions for both WTW and vehicle manufacturing. Thus, urban and rural damages can be calculated individually (rural emissions calculated by subtracting the urban emissions from the total emissions), and a "composite" damage derived from combining the urban and rural damages.
Using that methodology, here is a graphic of the results I get:
This shows EV in a better light, especially if it's a very clean grid like California (virtually no coal generation), since a higher percentage of emissions are generated in rural locations.
Edit: The "Diesel @X5" uses the average overall "real world" exhaust emission profile of the BMW X5 35d measured by WVU in the ICCT report.
Gassers emit a ton of PM, wipe you finger inside any gas car tailpipe and you will find plenty of soot. If anyone believes than gas engines don't emit PM then they are poorly misinformed. They also emit ultrafine PM which is much more damaging to the human lungs than diesel PM.I was unaware of that... that IS wrong. Gassers should be held to the same standard.
But if I'm reading this correctly... a gasoline engine would have to have a defect (oil leak) to have PM emissions... so it likely wouldn't pass an inspection anyway...
I'd say they've been misinformed quite well.Gassers emit a ton of PM, wipe you finger inside any gas car tailpipe and you will find plenty of soot. If anyone believes than gas engines don't emit PM then they are poorly misinformed. They also emit ultrafine PM which is much more damaging to the human lungs than diesel PM.
I don' think many people actually harbor a hatred for the diesel engine. I think people harbor a hatred for corporations who will seemingly stop at nothing to turn a profit.I don't understand why people hate diesels so much. Here you have an incredibly efficient internal combustion technology and it's all everyone can do to try and eliminate it. Where does the money trail lead? Who benefits from running diesel engines out of the US?
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This goes back years beyond the most recent shenanigans from vw. There have been decades of opportunity to bring diesel passenger vehicles to the US but it has not happened. The whole cheat device was just the catalyst needed to start the reaction that will push an emerging market back out of the States, possibly for good this time. Last time it was GM's sorry excuse for a diesel engine that turned people off to the idea of diesel passenger cars. This time it was the attempt of a corporation to put into the hands of the American people a product that was still reasonably affordable, fun to drive and still was cleaner than the vehicles the majority on this forum are driving. The green-at-all-cost model does not sit well with me. What's the point of buying a vehicle to save on fuel when all the savings are eaten up by having to have more expensive emissions equipment (that breaks) AND reduces the fuel economy to boot? I find it terribly strange that the lynch mob has its sights set on such a small portion of the market/component of daily traffic. Do people really think that gasoline vehicles are perfectly well behaved in all diving conditions? The EPA documents that came up when I searched showed more relaxed standards for gassers than diesels, right down to the sulfur content in the fuel. Is that not biased?I don' think many people actually harbor a hatred for the diesel engine. I think people harbor a hatred for corporations who will seemingly stop at nothing to turn a profit.
Bear in mind that if this strategy were declared by GM as an AECD for whatever reason, and EPA and CARB agreed with it, then this is legal.Testing reveals2:17-cv-11661-GCS-APP Doc # 1 Filed 05/25/17 Pg 9 of 191 Pg ID 9- 3 -010611-12 959897 V1that at temperatures below 68°F (the lower limit of the certification testtemperature), stop and go emissions are 2.1 times the emissions standard at428 mg/mile (the standard is 200 mg/mile). At temperatures above 86°F, stop andgo emissions are an average of 2.4 times the standard with some emissions as highas 5.8 times the standard. Based on temperatures in the top 30 metropolitan areas.
Just sharing... From the lawsuit itself.
I'm with ya there! I think it's absolutely retarded that our society feels compelled to add "gate" to any scandal. Watergate had nothing to do with water yet, following the recent trend in nomenclature of scandals, one would think it refers to the flint Michigan atrocity, or perhaps the Animas River spill, caused by contractors hired by the EPA. Just status quo in the dumbing down of our once-great nation.
Hmmm....Dumbingdowngate??I'm with ya there! I think it's absolutely retarded that our society feels compelled to add "gate" to any scandal. Watergate had nothing to do with water yet, following the recent trend in nomenclature of scandals, one would think it refers to the flint Michigan atrocity, or perhaps the Animas River spill, caused by contractors hired by the EPA. Just status quo in the dumbing down of our once-great nation.
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Watergate is a hotel.I'm with ya there! I think it's absolutely retarded that our society feels compelled to add "gate" to any scandal. Watergate had nothing to do with water yet, following the recent trend in nomenclature of scandals, one would think it refers to the flint Michigan atrocity, or perhaps the Animas River spill, caused by contractors hired by the EPA. Just status quo in the dumbing down of our once-great nation.
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That is so funny.It's GM, so....