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  #16  
Old 07-23-2013, 02:40 PM
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Quote:
Originally Posted by tjts1 View Post
Joking aside, the only problematic part on new diesels is the additional emissions controls installed on US bound cars.
The high pressure fuel pumps are extremely sensitive to poor fuel quality... water in the fuel, bit of gasoline... anything but perfect diesel will kill them in a hurry.

-J

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1999 Jetta TDI. 310,000 miles.
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  #17  
Old 07-23-2013, 03:05 PM
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Bummer on the lack of Passat wagons. I was hoping for that to be my wife's next car.

I think there is a lack of clarity on the function of DEF or the extra Diesel fuel for NoX adsorber regeneration. Essentially, they do the exact same thing. Adsorbers hold the NoX on the surface of the adsorber and have to periodically be cleaned off so there's room to grab more NoX. Either system just raises the temp of the adsorber medium and kicks off the catalytic reaction, turning the NoX into N2 and O2, which quickly turns into H2O when combined with atmospheric H2. So it really doesn't matter which system - you're either buying DEF or a little more Diesel. BTW - the FE hit for the Diesel fuel system (at least on heavy duty Diesels) is about 2% and that's from repeatable lab testing.

I'm not sure about current technology but in years past the European versions required a trip to the dealer for regeneration every so many miles (not sure of the interval) instead of the on-board regeneration system. In the US it was decided that that was unacceptable as we can't even get people to check their oil so how the heck can we expect them bring the car back for service of the NoX adsorber? Sad but true.

Dan
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  #18  
Old 07-23-2013, 03:13 PM
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I absolutely don't doubt there are many high mileage common rails out there. But years from now will be a different story, not to many people can rebuild a peizo or heui injector with a bottle jack and wrench. Or maybe Im just prejudiced against new stuff. Most likely the latter. I like mechanical I dont get along well with anything after obd-0.
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  #19  
Old 07-23-2013, 03:41 PM
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MY ML CDI is over 180 k miles now and only let me down once when the crank sensor went under warranty.
I just keep changing the oil and replacing tires.
Run flat tires would be a deal breaker for me on any car.
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  #20  
Old 07-23-2013, 04:37 PM
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2014 Mazda 6 has a diesel wagon.

2012+ Subaru has a Legacy diesel wagon.

Just not sold in North America.

I'd buy either, the first one that shows up here, cash on the hood.

I had a Passat, non-diesel. Will never buy another VW again, don't care if it's diesel or cold fusion.
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  #21  
Old 07-23-2013, 07:06 PM
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Mazda has a low compression Diesel engine that supposedly does not use any DEF.

I could have sworn I saw a Diesel Hyundai or Kia the other day on the highway, though I could not make out the badge clearly enough and drive safely at the same time.
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  #22  
Old 07-23-2013, 08:03 PM
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We have tier 4 Kubotas and Cummins common rail diesels with 5000 hours so far. No real issues except operators not paying attention to the DPF (diesel particulate filter) display.
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  #23  
Old 07-23-2013, 09:17 PM
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Good to hear, Duby. That squares with our lab results but I acknowledge that on-road experience can vary wildly from lab studies.

Dan
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  #24  
Old 07-23-2013, 10:02 PM
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Quote:
Originally Posted by compu_85 View Post
The high pressure fuel pumps are extremely sensitive to poor fuel quality... water in the fuel, bit of gasoline... anything but perfect diesel will kill them in a hurry.

-J
Thats what fuel filter, oil/water separator and 2 stroke oil are for.
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  #25  
Old 07-23-2013, 10:20 PM
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Hmm diesel Subaru? If it could come in AWD WRX/STI Rally trim id be at a dealership throwing money at someone.
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  #26  
Old 07-23-2013, 10:50 PM
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Originally Posted by tjts1 View Post
VM Motori which is a joint venture with Fiat. The version sold in the US is manufactured in Korea by Daewoo.
http://en.wikipedia.org/wiki/List_of_VM_Motori_engines#RA_420_SOHC
Test drove a Cruze a couple weeks ago. Nice car, but pricey ($26-$27K) and the urea-fluid tank occupies the space otherwise reserved for the spare tire!
Was told the Cruze is powered by an Opel diesel and built on an Opel floorpan. The content section on the price-sticker states the diesel engine's country of origin is Germany.

Happy Motoring, Mark
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  #27  
Old 07-23-2013, 11:18 PM
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Quote:
Originally Posted by eatont9999 View Post
Mazda has a low compression Diesel engine that supposedly does not use any DEF.

I could have sworn I saw a Diesel Hyundai or Kia the other day on the highway, though I could not make out the badge clearly enough and drive safely at the same time.
You probably saw the GDI gas direct injection cars.
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  #28  
Old 07-24-2013, 08:05 AM
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So thats what GDI stands for ive been puzzling on that for weeks.
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  #29  
Old 07-24-2013, 08:40 AM
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Modern diesel's may be complicated and needy, but its hard to argue with a 2 liter engine that can break the tires loose in 2nd when rolling at 15-20mph. Super torque!

As I have told my wife, keeping the TDI long term hinges completely on reliability....if it has ANY major (or even moderate) issues during the warranty period, I am trading it shortly after said event takes place and going back to MB. I have 617-like expectations, so if it fails to meet them, it goes. Even the slightly more modern OM601 in my 190 has nearly 250k on it, only repair the engine has needed is delivery valve seals and new injector nozzles....not even $150.
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'17 Metris(VITO!) - 18k - wifes (OC-25k)
'01 E320 Wagon - 161k - mine (OC-165,000)
'07 E350 Wagon - 136k - dad's (OC-139,500)
'01 SL500 - 58k - dad's (OC-59,000)
'16 E400 4matic Sedan - 83k - Brothers (OC-88,000)

Last edited by pawoSD; 07-24-2013 at 08:52 AM.
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  #30  
Old 07-24-2013, 09:27 AM
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Originally Posted by pawoSD View Post
Modern diesel's may be complicated and needy, but its hard to argue with a 2 liter engine that can break the tires loose in 2nd when rolling at 15-20mph. Super torque!

As I have told my wife, keeping the TDI long term hinges completely on reliability....if it has ANY major (or even moderate) issues during the warranty period, I am trading it shortly after said event takes place and going back to MB. I have 617-like expectations, so if it fails to meet them, it goes. Even the slightly more modern OM601 in my 190 has nearly 250k on it, only repair the engine has needed is delivery valve seals and new injector nozzles....not even $150.
Yeah. As someone that buys their cars long after the warranty is over, long-term reliability is a big issue for me. Especially as the newer cars get more complicated, difficult and expensive to repair. If only Toyota had sold a Camry or Corolla diesel here recently.
Unfortnately, I haven't been impressed with VW's reliability for a long time, and in it's first few years, Cruze reliability has already been rated poor by Consumer Reports!
Maybe the new Mazda diesel will fare better.

Happy Motoring, Mark

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