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VW Set To Release Diesel Hybrid
SUVs_SUCK writes "It's official — Volkswagen is unveiling a hybrid to challenge the mighty Toyota Prius. And not just any hybrid, but a diesel-electric hybrid it says will deliver 69.9 mpg. Auto Express says the Golf hybrid will be offered for sale in Europe by the end of next year. No word yet on when we might see it in the US."
Don't forget it's a diesel
It's hard to believe that's how Micronians are made. Why don't we see it right now by having you both kiss one another?
US and Imperial gallons vary significantly, 70mpg in imperial is 58 mpg in US gallons.. still quite good.
The current 1.9 TDI BlueMotion S does 62.8 mpg anyway, if we're talking Proper Gallons instead of the US ones. Which I'd expect a German company to be doing.
All the nasty, difficult to dispose of and full of toxic chemical batteries aren't improving that value by a hell of a lot, then.
"I Know You Are But What Am I?"
Biodiesel IS NOT ETHANOL. E85 is an ethanol blend. B% is a biodiesel blend. Most modern manufactures will warranty up to B5.
The problem with Biodiesel is that too much of it is out of spec. A recent survey done by I forget who found that 50% of "biodiesel" didn't meet the ASTM specification. Imagine if 50% of gasoline or diesel didn't meet the required spec, engines would be shitting out left and right.
Get the stock and specifications under control and then we'll talk.
Modern diesels are fine with BD. The main issue with running BD was on older engines with rubber fuel lines that the BD would dissolve, leading to clogged injectors and damaged fuel lines. But you can buy a VW diesel and run BD20 in it with out violating the warrenty. You can run BD100 in them just fine, but since BD isn't quite as standardized as PD they will not honor the warrenty if there is a fuel related problem and you've been running anything over BD20. In fact, the new ULSD fuel has lost a good deal of it's natural lubricity. Running 20% BD, 80% ULSD will actually get you the lower emissions of the ULSD and the lubricity of LSD.
-Rick
"Most people in the U.S. wouldn't know they live in a tyrannical state if it walked up and grabbed their junk." - MyFirs
"No word yet on when we might see it in the US."
We won't. The United States has long hated diesel cars. I can't think of a single domestic automaker that has a diesel car. And the number of imports is *very* limited. When you can find one, you will not receive any discounts, no special offers apply to them, and the dealers will avoid making you a deal on the price. On top of that, it is not always easy to find diesel. In the Chicago area it was a complete pain to find a station that sold diesel for my old Mercedes. I was thankful that there was one near my home, but the next nearest one was four towns away.
I'd love to see this type of car around here. I get sick and tired of listening to my friends tell me how they are so proud that their new, spartan, unimaginative, boring, uncomfortable Toyotas, Hondas, and Fords get 30mpg on the highway. Although I do love watching them flip out when I show them how my 24 year old, 5000 lb, loaded with bells and whistles, diesel Mercedes sedan gets 38mpg on the highway.
Sigh. I don't know when we're gonna "get it" over here.
I've thought about buying a Prius, but they lack the massive quality problems and terrible fit & finish that come standard with every Volkswagen model.
Now I can save the planet even more: on the days it's in the shop for warranty repairs, it will consume no fuel!
The United States has long hated diesel cars.
I don't think that's entirely true. GM screwed it up for everyone else by their half-assed conversions of gasoline engines to diesel around 1979 - broken crankshafts, cracked cylinder heads, etc. resulted from not adequately reengineering the main components of the Oldsmobile 5.7L V8 and 4.3L V6 (used in front wheel drive A-body cars).
The Mercedes diesels have always been reliability legends and sold well in the USA through the 1980s. There are still a lot of W123-chassis diesel models running around. VW diesels seem well regarded in the USA too.
In the US pickup truck marketplace, diesels are seen as ultra-reliable high-torque powerhouses. A full-size pickup with a diesel engine gets significantly better fuel mileage than my gasoline-powered mid-size Dodge Dakota (I have seen mileage as low as 9.9 MPG in city driving in bad winter weather). Problem is, diesels are seen as ultra-reliable high-torque powerhouses and so the diesel pickup engines available are all overbuilt, for the people who apparently tow ocean liners across the country or something. The Cummins 5.9L diesel 6-cylinder engine was a $6000 option by itself, and there is no light-duty diesel engine available for normal people.
I can't think of a single domestic automaker that has a diesel car.
Well I guess it depends on what you consider a "car". Chrysler currently sells the Jeep Liberty with a 2.8L diesel engine which according to reviews gives superior performance and much better fuel economy than the 3.7L gasoline engine, and all three of the big three (GM, Chrysler, Ford) sell pickup trucks with diesel engines (although they are huge trucks).
With the current fuel costs, there is definitely a market in the USA for efficient vehicles, but people aren't willing to give up performance (remember the 48HP VW Rabbit diesel? I'd hate to try to merge into expressway traffic in one of those) or move to much smaller vehicles (utility and the perception of safety).
I think with the modern diesel technology that cuts the noise (although I love the diesel clatter myself) and cleans up the emissions, and fuel economy that rivals or surpasses hybrid gasoline cars (without making the car into an expensive science-fair project on wheels), the time for diesel cars in the USA has arrived.
Putting moderation advice in your
First, I'll note that Gothmolly was wrong about the injection pressure on the Pumpe-Duese TDIs. It's 30,000 PSI, not 20,000. The common rail TDIs will be about 30,000 PSI as well.
Anyway, there's many problems. First is the viscosity of the vegetable oil. It's thick enough that the pump (or pumps in the PD cars) has to work a *LOT* harder to pump it, stressing it beyond the design specifications.
Second is... once you heat it to even get it close to the correct viscosity, it loses its ability to properly cool the fuel system.
Third is... in the injectors, the extreme heat there causes it to break down into its component fatty acids and glycerin... which then cokes on the injectors. When that happens, the spray pattern of the injectors is worsened, which can cause streams of fuel to hit things in the engine... causing major damage.
Look on TDIClub in the Alternative Diesel Fuels forum... there are various threads showing pictures of the carnage that WVO can cause.