At least in the case of the VW TDIs, there's no 5th injector. Instead, during a regeneration cycle (on the TDIs, from what I've heard, it should be in the 20,000-40,000 mile range,) the regular injectors fire with the exhaust valves open.
Actually, the filters theoretically only need to be replaced if they get clogged, and the regeneration cycle doesn't clear them. The ECU programming is such that the regeneration cycle will run long before they get clogged.
And, if they fail, the car will either be in a "limp home mode" (basically, the computer restricting it to have barely enough power to drive the car home or to the dealer for repairs,) or it won't even run at all.
Oh, and even if they do fail, the fuel injection on these cars is ridiculously precise, and there shouldn't be that much particulate that needs to be filtered - from what I've heard, the regeneration cycle on the 2009 VW TDIs is in the 20,000-40,000 mile range.
First, that 65 MPG number is not in imperial gallons, it's in US gallons (although it's rounded to the nearest 5.) The car is rated for 61.3 miles per Imperial gallon urban (or 51.0 miles per US gallon,) 88.3 miles per Imperial gallon extra-urban (or 73.5 miles per US gallon,) and 76.3 miles per Imperial gallon combined (or 63.5 miles per US gallon.)
And the EPA drivecycle is grossly inaccurate - by 18.3% - for diesels.
Actually, the gasoline particulates staying in the air means that you're more likely to breathe them in, and they're smaller, so they go further into your lungs, and they're more carcinogenic.;)
Well, California's also trying to create CO2 emissions standards. Fuel consumption ties directly into that, so what we're going to see is either:
1. Lots of vehicles gaining weight so they can have a GVWR over 8500 pounds, and therefore are classified as commercial trucks 2. Anything larger than a Yaris or Fit, with exceptions here and there like diesel Jettas and hybrids, outlawed.
The problem is that 11 other states have adopted California emissions - Connecticut, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington.
Car model years actually start in August (and production in July,) not January.;)
So, model year 2009 diesel cars are on dealer lots (well, OK, in the case of VW, not on dealer lots, rather in driveways - I don't know about Mercedes) right now.
The Mercedes E320 Bluetec is a clean diesel, and came out in 2007, so my comment applies to that, too.
Take a look at the weekend effect - basically, when truck traffic goes down, smog goes up. IIRC, diesels emit more NO2 than NO, and (again, IIRC) NO2 reacts such that it reduces smog in a VOC rich environment. (If it's not NO2, it's NO, and I got it backwards.)
Also, as for particulates, what you can't see can kill you - gasser particulate is more carcinogenic, and also is much smaller and will go further into your lungs, and stays in the air much longer. Diesel particulate is larger and falls to the ground quickly.
What do particulate emissions have to do with anything? I never mentioned them.;) (And, yes, that was a weak point of diesels... but now, with modern (expensive, though) particulate filters, they actually do much better than gassers.)
Nobody converts corn oil to biodiesel, though - it's usually soybean oil in the US, and rapeseed oil in other countries. And, I never said anything about biodiesel in my own post. I was talking about diesels in general as opposed to gasoline.
And, it always takes more power to split hydrogen off of water than you get from burning the hydrogen. Always, always, always. If you're doing it this way, you're making Rube Goldberg's electric car, because all of the energy the car is getting is from the battery. (Or, if you're using HHO as a supplement to gasoline or diesel, you're instead making Rube Goldberg's water injection kit (and water injection actually is proven to work, but it hasn't been intentionally used for efficiency improvements, only max power improvements,) most likely, because that's what's happening - the free hydrogen is bonding back with the hydroxide group, resulting in water again.)
I'm going to guess that you're specifically trolling me, though... let me guess, you're from #tdiclubchat.;) (Although you would've made a comment about Miatas if you were...)
I'm not saying that the public perception isn't rooted in some truth, somewhere, but it means that it's much easier for California to set the bar extremely high for diesels than it is for them to ban gasoline cars.
(Then again, there are suspicions that CARB is trying to outright ban the liquid-fueled combustion engine.)
Clean diesel fuel just means it's possible to put a $2000 particulate filter and another $1000 (or so) NOx trap on a car, it doesn't make those parts cheap.
First off, my diesel hasn't been on the road for almost a year.
Second, how about getting out, going behind a 2009 diesel, and taking a whiff? There's nothing. The tailpipe is clean inside, even - can't say that about a gasoline car.
And, finally, the visible particulates from diesels settle to the ground, and if you inhale them, don't go nearly as deep as the gasoline ultrafine particulates that you can't see, and are much more likely to cause cancer. (Oh, and my gasoline car has visible emissions. I know, I know.)
But California's under the mistaken belief that NOx emissions are the source of their smog problems, except in a VOC rich environment (basically any environment with a heavy percentage of gasoline cars,) smog is [b]reduced[/b] but NOx emissions, especially those from diesels.
But, they don't seem to quite get that, and public perception is that diesels are dirty, so...
The worst would be just about every dumbphone from Verizon, FWIW.
Crippled Bluetooth, USB capabilities heavily locked out (but P2KCommander so helpfully completely ignores such lockouts on Motorola phones,) no J2ME - instead, BREW, where the developer license is $400 for a 100 application license (I believe that's 100 different versions, too,) a much, much stricter policy to application uploads, only being able to distribute applications through the carrier, not through your own site, etc., etc.
But, the iPhone is probably the worst smartphone. The other smartphone OSes... let's see. Symbian, which is open (as in anyone can develop for it,) Windows Mobile, which is open, Palm OS, which doesn't even support code signing, let alone require it, so it's open, a couple Linux smartphones, which are obviously open, and that's pretty much it.
At driving speeds it's harder to find out, but at walking speed (if you actually are on foot, it's warstumbling,) you can easily see the signal strength go up as you walk by the house that the router is in.
I'll agree that Apple's software for Windows sucks horribly.
Oh, and I've only had eight or nine BSODs for all 2000-Vista versions of Windows.
Six or seven of them were on one Vista machine with a failing hard drive - which can't be counted against Vista, I mean, that's a hardware failure.;) (And that's the only Vista machine that I've ever used as my personal machine, and I had it for two weeks.)
Some of those drivers actually have counterfeiting detection code in them - oh, you're trying to scan something with the EURion constellation? NO CAN HAS!
Also, you'd be amazed how much space a few losslessly compressed movies can take, for the pretty animations in the help and the printer monitor window.;)
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At least in the case of the VW TDIs, there's no 5th injector. Instead, during a regeneration cycle (on the TDIs, from what I've heard, it should be in the 20,000-40,000 mile range,) the regular injectors fire with the exhaust valves open.
Actually, the filters theoretically only need to be replaced if they get clogged, and the regeneration cycle doesn't clear them. The ECU programming is such that the regeneration cycle will run long before they get clogged.
And, if they fail, the car will either be in a "limp home mode" (basically, the computer restricting it to have barely enough power to drive the car home or to the dealer for repairs,) or it won't even run at all.
Oh, and even if they do fail, the fuel injection on these cars is ridiculously precise, and there shouldn't be that much particulate that needs to be filtered - from what I've heard, the regeneration cycle on the 2009 VW TDIs is in the 20,000-40,000 mile range.
First, that 65 MPG number is not in imperial gallons, it's in US gallons (although it's rounded to the nearest 5.) The car is rated for 61.3 miles per Imperial gallon urban (or 51.0 miles per US gallon,) 88.3 miles per Imperial gallon extra-urban (or 73.5 miles per US gallon,) and 76.3 miles per Imperial gallon combined (or 63.5 miles per US gallon.)
And the EPA drivecycle is grossly inaccurate - by 18.3% - for diesels.
The EPA even says so. (page 16)
In that document, current label fuel economy is the 1985-2007 method, MPG-based label is the 2008+ method.
Your point about diesel's higher energy density stands, though.
Holy linkfail, batman!
Here's the fixed link: http://www.theonion.com/content/node/39073
Actually, the gasoline particulates staying in the air means that you're more likely to breathe them in, and they're smaller, so they go further into your lungs, and they're more carcinogenic. ;)
Well, California's also trying to create CO2 emissions standards. Fuel consumption ties directly into that, so what we're going to see is either:
1. Lots of vehicles gaining weight so they can have a GVWR over 8500 pounds, and therefore are classified as commercial trucks
2. Anything larger than a Yaris or Fit, with exceptions here and there like diesel Jettas and hybrids, outlawed.
The problem is that 11 other states have adopted California emissions - Connecticut, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington.
I believe he's referring to the Audi S3, although that's not sold here in the States.
(And, the gas turbos run on premium.)
Car model years actually start in August (and production in July,) not January. ;)
So, model year 2009 diesel cars are on dealer lots (well, OK, in the case of VW, not on dealer lots, rather in driveways - I don't know about Mercedes) right now.
The Mercedes E320 Bluetec is a clean diesel, and came out in 2007, so my comment applies to that, too.
Smog is ozone, however.
Take a look at the weekend effect - basically, when truck traffic goes down, smog goes up. IIRC, diesels emit more NO2 than NO, and (again, IIRC) NO2 reacts such that it reduces smog in a VOC rich environment. (If it's not NO2, it's NO, and I got it backwards.)
Also, as for particulates, what you can't see can kill you - gasser particulate is more carcinogenic, and also is much smaller and will go further into your lungs, and stays in the air much longer. Diesel particulate is larger and falls to the ground quickly.
What do particulate emissions have to do with anything? I never mentioned them. ;) (And, yes, that was a weak point of diesels... but now, with modern (expensive, though) particulate filters, they actually do much better than gassers.)
I was talking about nitrogen oxides. ;)
Nobody converts corn oil to biodiesel, though - it's usually soybean oil in the US, and rapeseed oil in other countries. And, I never said anything about biodiesel in my own post. I was talking about diesels in general as opposed to gasoline.
And, it always takes more power to split hydrogen off of water than you get from burning the hydrogen. Always, always, always. If you're doing it this way, you're making Rube Goldberg's electric car, because all of the energy the car is getting is from the battery. (Or, if you're using HHO as a supplement to gasoline or diesel, you're instead making Rube Goldberg's water injection kit (and water injection actually is proven to work, but it hasn't been intentionally used for efficiency improvements, only max power improvements,) most likely, because that's what's happening - the free hydrogen is bonding back with the hydroxide group, resulting in water again.)
I'm going to guess that you're specifically trolling me, though... let me guess, you're from #tdiclubchat. ;) (Although you would've made a comment about Miatas if you were...)
I'm not saying that the public perception isn't rooted in some truth, somewhere, but it means that it's much easier for California to set the bar extremely high for diesels than it is for them to ban gasoline cars.
(Then again, there are suspicions that CARB is trying to outright ban the liquid-fueled combustion engine.)
Clean diesel fuel just means it's possible to put a $2000 particulate filter and another $1000 (or so) NOx trap on a car, it doesn't make those parts cheap.
First off, my diesel hasn't been on the road for almost a year.
Second, how about getting out, going behind a 2009 diesel, and taking a whiff? There's nothing. The tailpipe is clean inside, even - can't say that about a gasoline car.
And, finally, the visible particulates from diesels settle to the ground, and if you inhale them, don't go nearly as deep as the gasoline ultrafine particulates that you can't see, and are much more likely to cause cancer. (Oh, and my gasoline car has visible emissions. I know, I know.)
But California's under the mistaken belief that NOx emissions are the source of their smog problems, except in a VOC rich environment (basically any environment with a heavy percentage of gasoline cars,) smog is [b]reduced[/b] but NOx emissions, especially those from diesels.
But, they don't seem to quite get that, and public perception is that diesels are dirty, so...
What if Canonical started distributing Windows and OS X builds of Iceweasel, and pitched it as a competitor to Firefox?
The worst would be just about every dumbphone from Verizon, FWIW.
Crippled Bluetooth, USB capabilities heavily locked out (but P2KCommander so helpfully completely ignores such lockouts on Motorola phones,) no J2ME - instead, BREW, where the developer license is $400 for a 100 application license (I believe that's 100 different versions, too,) a much, much stricter policy to application uploads, only being able to distribute applications through the carrier, not through your own site, etc., etc.
But, the iPhone is probably the worst smartphone. The other smartphone OSes... let's see. Symbian, which is open (as in anyone can develop for it,) Windows Mobile, which is open, Palm OS, which doesn't even support code signing, let alone require it, so it's open, a couple Linux smartphones, which are obviously open, and that's pretty much it.
Have it dump to tape, sneakernet the tapes to another machine 5 feet away, that [b]is[/b] Internet connected.
At driving speeds it's harder to find out, but at walking speed (if you actually are on foot, it's warstumbling,) you can easily see the signal strength go up as you walk by the house that the router is in.
I'll agree that Apple's software for Windows sucks horribly.
Oh, and I've only had eight or nine BSODs for all 2000-Vista versions of Windows.
Six or seven of them were on one Vista machine with a failing hard drive - which can't be counted against Vista, I mean, that's a hardware failure. ;) (And that's the only Vista machine that I've ever used as my personal machine, and I had it for two weeks.)
If they are running in userspace, then it's definitely a flaw in Vista.
Except the application installs drivers.
And it's not necessarily a bug in the OS if drivers are causing it, unless you run all drivers in the userland like QNX does.
Some of those drivers actually have counterfeiting detection code in them - oh, you're trying to scan something with the EURion constellation? NO CAN HAS!
Also, you'd be amazed how much space a few losslessly compressed movies can take, for the pretty animations in the help and the printer monitor window. ;)