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VW "Clean" Diesel not really clean

Killroy1999 said:
48.1 MPG Diesel is energy equivalent to ~42 MPG Gas, which is also called MPGe, so even if VW was not cheating, the energy efficiency of diesel is not as good as people think because diesel has more energy per gallon. :nerd:nerd
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Let us know when the standard gallon of fuel you buy from the gas station takes this into account and adjusts the amount of fuel you're supposed to be paying for. Until then, nobody gives a phuck.

Climber said:
Diesel is MUCH more efficient when you're stuck in traffic a lot, when there is no load on the engine (i.e. you are not moving) it takes far less fuel to keep the engine turning over than a gas engine.
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I've heard this before, don't think it's really true (myth if you will), can't find anything in the last 5 mins of searching to see if there's been a study.

edit, knew it was better, didn't think it was anywhere near 100%. That's pretty cool,something to smile about while one is stuck in traffic lol
 
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Dubbington said:
Damn! Is that what's gonna happen? Owners get a check for the premium we paid for diesel but then a recall software update kills gas mileage and performance??
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I don't think anyone really knows what's going to happen but a software recall might be the easiest solution for VW. Of course that would anger all of us who bought TDIs for their exceptional fuel mileage. More restrictions on the engine might have a negative impact on reliability so I'd get an APR tune just to be safe after the recall as I'd like to keep my car for awhile.
 
Emailed the firm involved in the class action lawsuit.

It's gonna kill my resale in 5 years AND if the recall in california is mandatory it can kill my performance and MPG, possibly even other emission parts since they were designed around the cheat code (speculating).
 
JesasaurusRex said:
I've heard this before, don't think it's really true (myth if you will), can't find anything in the last 5 mins of searching to see if there's been a study.

edit, knew it was better, didn't think it was anywhere near 100%. That's pretty cool,something to smile about while one is stuck in traffic lol
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In 1979 my Mechanical Engineering professor told us this.

With some research, it looks like this is no longer true (if ever?), it could be that fuel injection and the addition of computers into gas cars have changed the efficiency of gas engines in cars.

There goes one more thing that I took as a fact in my younger years. :afm199
 
That and they're typically smaller, some might go into cylinder deactivation too. I'd like to see a comparison, equal sized motor, today's tech, I bet it's pretty close. Just can't find any data.

The reason I mention this is the 2002 duramax I had (6.6L diesel) didn't do too much better than the 2015 gasser I now have (6.2L) . The old truck I no longer have or I'd do a comparison myself. Granted it was 13 years old and there's been a lot of tech advancements since then so it probably wouldn't be fair to compare anyways.
 
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jigabeer said:
well, technically it is more economical deleting all the emission system since it runs more efficient without.

adding all the emission safety nets is only one side of the coin. clean(er) air but more toxic gases. problem with the filtration system in diesel engine is that they capture only "big" particles in nano-size, but the really harmful stuff can not be filtered and ends up in out lungs / blood bonding with cells creating all sorts of diseases.

personally i'd rather black smoke i actually see, instead of having unburned carbon happily sticking to my blood cells.
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:|

Please tell me what you know about diesel oxidation catalysts. I'm truly interested.
 
Killroy1999 said:
VW stock fell 20% since the news and 45% over the last 6 months.

Tesla is up and nearing its all time high.
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might be a good time to buy VW. they arnt going anywhere, they make great cars. they will rebound
 
NPR ran a piece that said the estimated fines the EPA could levy would be $18 Billion. I say have at it. Dismantle the company and make them an example.
 
Dismantle the two-decade reining leader of European automotive manufacturing? A company that has revenues consistently in the hundreds of billions of Euros?

Right. :laughing
 
SpeedyCorky said:
might be a good time to buy VW. they arnt going anywhere, they make great cars. they will rebound
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You might want to hold off for a while before buying any stock. It's going to get a lot worse, before it gets better.
 
Kornholio said:
Dismantle the two-decade reining leader of European automotive manufacturing? A company that has revenues consistently in the hundreds of billions of Euros?

Right. :laughing
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:laughing. True.

The world would be such a better place if people understood the difference between million, billion, and trillion.
 
Kinda funny that GM actually killed people with their coverup and they got basically a slap on the wrist, meanwhile it looks like VW is going to take a huge hit based on this cheat.

Also, TBH I kinda like the idea of a company sneaking around the EPA in this manner. it's a pity they were caught.
 
Meter Man said:
Tongue in cheek.
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We need a sarcasm emoticon.

ScarySpikes said:
Kinda funny that GM actually killed people with their coverup and they got basically a slap on the wrist, meanwhile it looks like VW is going to take a huge hit based on this cheat.

Also, TBH I kinda like the idea of a company sneaking around the EPA in this manner. it's a pity they were caught.
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:wtf

Pity they were caught? Are you actually supportive of air pollution status quo?
 
In general no, I like the idea of clean vehicles. This is going to be a huge setback for diesel in the US. Oh well.
But looking at what they did it reminds me of the many interesting cheats done in racing to get that tiny extra advantage, and I always love those.
 
ScarySpikes said:
In general no, I like the idea of clean vehicles. This is going to be a huge setback for diesel in the US. Oh well.
But looking at what they did it reminds me of the many interesting cheats done in racing to get that tiny extra advantage, and I always love those.
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I spent the better part of a decade in the diesel exhaust retrofit business. It's not hard to clean up both diesel engines and especially their exhaust but it takes engineering on the one end and a willingness to follow instructions and maintain your vehicle on the other end. There is a systemic problem with the trucking industry doing the bare minimum of maintenance that they can get away with and in turn polluting the shit out of our air which has in turn fostered a legacy of morons deleting their DPFs (and usually their DOCs) as a "fuck you" to the EPA and CARB essentially telling the trucking industry, the diesel industry and everyone else that diesel exhaust is not as clean and harmless as they think it is nor has it ever been. Running your diesel engine with no exhaust DOES NOT net you any realistic gains whatsover. In fact, the exact opposite can happen since the modern engines were engineered with the boost running off a specific level of backpressure in the system...which you've now eliminated to make your brodozer look so much cooler when you roll coal.

I don't like the fact that VAG took a shortcut to do what they have the capability of actually engineering correctly, but that doesn't mean what the EPA and CARB have been doing in terms of cleaning up diesel exhaust is wrong.
 
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