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    usbseawolf2000 HSD PhD

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    2012 Prius Plug-in
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    Plug-in Base
    Non-Methane Organic Gases
    NMOG2.GIF

    Carbon Monoxide
    CO2.GIF

    Nitrogen Oxide
    NOx2.GIF

    Highway Nitrogen Oxide
    Hwy NOx2.GIF

    Overall
    NOx2.GIF

    Summary:

    • Jetta gasoline is cleaner than TDI despite heavy marketing of the "Clean Diesel".
    • Civic Hybrid is generally cleaner than the non-hybrid version, except for CO.
    • Lexus HS 250h is cleaner than the Insight, except highway NOx.
    • Prius is the king of clean car.
    • Subaru WRX STI is the dirtiest of all. It is 10x to 27x dirtier than the Prius due to turbo.
    • Jetta TDI is cleaner than WRX STI but STI has more than 2x hp.
    Unit:

    NMOG - g/mi
    CO - g/mi
    NOx - g/mi
    HCHO mg/mi
    PM - g/mi
    Hwy NOx - g/mi

    Attached Files:

    Last edited by usbseawolf2000, Oct 15, 2012
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    malauber New Member

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    What units are these measurements recorded in?
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    Tideland Prius Moderator of the North

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    Cool. Where'd you get the info from? Can you imagine before we had ULEV cars? I remember our Corolla was a LEV and then our Camry was ULEV and the Prius was SULEV/PZEV-AT lol... keep going up the scale.
  4. Offline

    usbseawolf2000 HSD PhD

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    Everything is in gram per mile except HCHO but it is always N/A.
  5. Offline

    usbseawolf2000 HSD PhD

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    MaggieMay Active Member

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    Thanks for sharing this - can't wait to show it to my brother who thinks 'clean deisel is not an oxymoron. :rolleyes:
  7. Offline

    usbseawolf2000 HSD PhD

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    Hybrid Models Comparison

    It is surprising to see Ford Fusion hybrid not as clean as RX 450h SUV! Toyota and Lexus hybrids are among the cleanest cars available.

    Camry hybrid produce no Nitrogen Oxide? That's the data straight from CARB.

    CO.GIF Hwy NOx.GIF NMOG.GIF NOx.GIF Overall.jpg
    Last edited by usbseawolf2000, Oct 15, 2012
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  8. Offline

    a_gray_prius Rare Non-Old-Blowhard Priuschat Member

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    Its awesome you dropped the STi in there :)
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    a priori Canonus Curiosus

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    Thank you for sharing this data with us (and for providing a reference).

    How about comparing other popular vehicles, though? Is there really that much difference among the Prius, HCH, Insight and FFH when you compare them all to regular Camry or Chevy Malibu or a Ford F150 or a Kia Something?
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    carz89 I study nuclear science...

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    How does the Hummer compare? Of course everyone knows that the hummer is cleaner overall on the environment than the Prius. ;)

    It's interesting that two of the primary market competitors of the Prius, the 2010 Insight and the Ford Fusion, put out an order of magnitude more pollutants than the new Prius.
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    usbseawolf2000 HSD PhD

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    CARB does not test Hummer because of the weight reasons I believe.
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    Tideland Prius Moderator of the North

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    Yup. It's over the weight limit for a personal vehicle.
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    wdross New Member

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    Thanks for the info. What surprises me is that the emissions are so low while both the mpg and horsepower increased on the 2010 Prius. It truely is close to being unbelieveable. I guess it just takes a proper mind set to create such a phenomenal vehicle.
    1 people like this.
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    antiflash New Member

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    LoL about the STi as well :) that was actually one of the other cars I was looking at so it makes me feel better that I did go with the Prius vs STi.
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    cossie1600 Active Member

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    The emission output will double when the car runs at full boost :) It's a different kind of car, get whatever that fits the driver better
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    PriusSport senior member

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    Just think how much better off the world would be if the Prius (or its equivalent) was the only car you could buy. There would be no dependence on Middle East oil, hence no strategic reason to spend trillions over there trying to change governments (it really is all about oil). And maybe we would stand a chance in controlling carbon emissions. I'm not terribly optimistic...
    1 people like this.
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    usbseawolf2000 HSD PhD

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    I posted a new comparison with 2011 Honda CRZ.
  18. Offline

    usbseawolf2000 HSD PhD

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    Re: Emission Comparison: Prius / HS250h / Insight / Civic Hybrid / Jetta (Gas+TDI) / WRX STIH

    I added Chevy Volt to the comparison. Volt did not even qualify for SULEV. It got ULEV.

    I added evaporative emission chart to compare. TDI does not have data for it. I am not sure if it is too low to report or they did't test it.

    Volt.png Volt_evap.png

    Source
    Last edited by usbseawolf2000, Oct 15, 2012
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  19. Offline

    SageBrush Senior Member

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    Nice! Thanks for posting.
    The outlier vehicle makes it hard to see difference in the other cars though.

    Do you have Prius '10 vs Prius '04-'09 ?
  20. Offline

    SageBrush Senior Member

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    I imagine it means below limit of detection.

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