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German automotive companies launch “clean-diesel” marketing campaign in US

Discussion in 'Diesels' started by cwerdna, Dec 13, 2012.

  1. cwerdna

    cwerdna Senior Member

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    Green Car Congress: German automotive companies launch “clean-diesel” marketing campaign in US

    A moderator on MyNissanLeaf posted the above. It's interesting that a diesel fanboy (who some have labeled as a troll for other reasons there) started a random "Yes "clean diesel" really is clean..." thread over about a week ago. Hmmm...

     
  2. wxman

    wxman Active Member

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    I wasn't able to find the thread on MyNissanLeaf about clean diesel, but are you implying that you don't think "clean diesel" is really "clean"?
     
  3. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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  4. wxman

    wxman Active Member

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    In my opinion, you need to take all emissions into account, not just what comes out of the tailpipe, i.e., well-to-wheels comparisons.
     
  5. usbseawolf2000

    usbseawolf2000 HSD PhD

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  6. wxman

    wxman Active Member

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  7. usbseawolf2000

    usbseawolf2000 HSD PhD

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    Here is a comparison from EPA. 379 g/mi (TDI) and 443 g/mi (PZEV). EPA numbers include CO2 equivalent of the other gases.

    The difference is due to 34 MPG diesel vs. 25 MPG gas. 140hp 4 cylinders diesel vs. 170hp 5 cylinders gas.
     
  8. usbseawolf2000

    usbseawolf2000 HSD PhD

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  9. usnavystgc

    usnavystgc Die Hard DIYer and Ebike enthusiast.

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    The problem with this concept is that diesel is $.90 a gallon more expensive than regular here. These car companies should look at that. I know I do and it totally turns me off of diesel.
     
  10. wxman

    wxman Active Member

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    I used the WTW GHG results of GREET1_2012 of the MT versions of each vehicle. Using the AT versions, GREET1_2012 gives 449 g/mi (PZEV) and 384 g/mi (TDI).

    Not sure what EPA is using, but the relative difference appears to be about the same.