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World's Cleanest Cars

electrictroyelectrictroy Posts: 564
edited March 19 in Honda
Subject: 2005 - North America's Cleanest




CHANGES: The Insight used to be #1, but Honda upgraded their GX in 2004, so the GX now fills the top spot. Also new to the list is the Escape Hybrid & several Partial-Zero Emission Vehicles (PZEV).


GREEN SCORE = scale from 0 to 100, where 100 = no pollution




Alternate Fuels/Hybrids


57 Civic Natural-Gas GX cvt (SULEV-2/PZEV)

56 Insight cvt (SULEV-2)

53 Prius cvt (SULEV-2/PZEV)

51 Civic cvt (SULEV-2/PZEV)

40 Escape cvt (SULEV-2/PZEV)


Standard Cars


44 Corolla manual (ULEV-2)

43 Echo manual (LEV-2)

42 Sentra manual (SULEV-2/PZEV)

42 Civic Lean-Burn HX manual (ULEV-1)







51 2-seat EV1 (discontinued)

51 Rav4 (discontinued)

27 = average car







  • larsblarsb Posts: 8,204
    This falls into the "Amazing But True" bin.


    "If driven from California to Washington, DC, the Honda Civic GX natural-gas vehicle would emit fewer reactive hydrocarbons than that released by spilling a single teaspoon of gasoline."

  • azhahazhah Posts: 82
    Also on same site..


    Midsize Cars:


    Toyota Prius 53 PZEV

    Accord Hybrid 40 ULEV 2

    Kia Spectra 39 PZEV

    Toyota Camry 38 PZEV

    Accord I4 38 PZEV

    Hyundai Elantra 38 PZEV
  • mirthmirth Posts: 1,212 the Ford Focus PZEV?
  • explorerx4explorerx4 Central CTPosts: 9,613
    regarding a pzev focus, as of 2004 there was one.
    for 2005, i don't think there is one available.
    ford went with a smaller engine which get's a bit better mileage.
  • xcelxcel Posts: 1,025
    Hi Explorerx4:

    The Focus 2.0 purchased in the clean states and running on their LS gasoline is a PZEV. The same HW based car is a Tier II-Bin3 throughout the rest of the country on HS garbage. Very clean and a PZEV none-the-less. This is if you purchase the right one. There are also 2 others. A Tier II-Bin5/LEV-II for the entire country and a stinking LEV available here in Chicago and a few other large cities. This includes Milwaukee and Racine, WI., Lake County IL., Chicago, IL. Gary, IN. Atlanta, GA., and Denver, CO. The EPA lists these areas as Clean Fuel Fleet areas yet Ford (they are not the only guilty manufacturer) and others use it to dump their worst emitters :-( I really wish Ford would get rid of these LEV’s as it stinks to live in some of the larger cities in the Midwest and south and have to purchase a LEV if you decide on a Focus or whatever. It was not that long ago that the Focus 2.3 (late 03/early 04) were all PZEV’s no matter where they were purchased. They did not give the non-clean fuel states the PZEV warranty of course but they were very clean none-the-less. If only they would have advertised the fact! The same problem arises with the 2.3 L Ford Escape HEV as well. A PZEV in the clean states but only a LEV in a few large cities in the Midwest and South :-( Why, I have no idea?

    Good Luck

    Wayne R. Gerdes
  • larsblarsb Posts: 8,204
    I guess a car running on compressed air would be the cleanest car in history?,1,2-276729- - .story?coll=la-news-state&ctrack=2&cset=true

    To get that url to work, take out the space after 276279- there is no space there, it should read 2-276729-.story

    Hosts, why have long urls stopped working? When I create a new message and post a long url, the url is wrong. This only started happening a couple of days ago.
  • SylviaSylvia Posts: 1,636
    Yes - we know. Fix will be in on 3/2.
  • explorerx4explorerx4 Central CTPosts: 9,613
    i feel fortunate to have gotten a 2.3 pzev focus.
    of course, i still lose the sibling rivalry to my sister who has a gen 2 prius. :)
  • xcelxcel Posts: 1,025
    Hi Explorerx4:

    The PZEV Ford Focus 2.3 is one of my favorites!

    Since you own the Focus and have hopefully spent some time in your sisters Prius II, what do you like and dislike between the two? Which trim of the Focus do you own? I was partial to the ZX5 Premium w/ leather and a stick :-D

    Both are actually as clean as one another (Tier II-Bin3) sans CO2 output with the Prius II’s FE taking it out front but not in the short term given the production emissions discussed in detail over 6 months ago. I have to assume you love the performance, handling, price, and larger overall interior room of the Ford vs. the FE, rear seat room, and luxurious amenities of the Toyota minus the Sunroof. Are there any other small details between the two you might be able to share?

    If I could find a used 05 2.0 L PZEV loaded to the nines with leather, side impacts, TC, ABS, and a sunroof but with a stick and for $5K less then new invoice … Well you know, we can always wish ;)

    In direct regards to this forums topic, besides the 2 - 05 DCC’s receiving 9.5’s on the EPA’s new scoring sheet, the 05 PZEV based HCH and Accord are two top picks with SULEV-II/Tier II-Bin2 CARB and FED ratings respectively while also receiving very high FE for their respective classes in the real world.

    Good Luck

    Wayne R. Gerdes
  • In 2006, Ford will introduce a new Focus that operates on diesel and gets >40 mpg! It will be ULEV-2 qualified.


    Why does Ford have three emissions zones?
    - California-compliant states
    - non-california 45-State version
    - Chicago & other midwest cities

    What's the deal with that?
  • xcelxcel Posts: 1,025
    Hi ElectricTroy:

    The advanced Focus diesel is just a test bed and it will not be ready for 06 sale. It just went on the dyno 3 weeks ago for the SCR and DPF fitments and testing. The Tech lead is shooting for far beyond ULEV as his design is shooting at the PZEV spec w/ the hybrid drivetrain on the Meta-One but ULEV seems plausible without given what he has planned. The problem with the SCR CAT is it uses a Bi-Fuel fill nozzle (Urea and Diesel from the same nozzle but 2 different ports) and the Oil companies have not decided it is in their best interest to bi-fuel as every station would need an upgrade.

    It is the Focus Diesel that was shown around the US to the car mags if that was what you had read but that diesel was nowhere near ULEV qual’ed. This is what Mr. Zafer Shaikh is working to overcome.

    Second question: $’s.

    Good Luck

    Wayne R. Gerdes
  • SCR?

    Last I heard, the urea canister was supposed to be refilled every ~50,000 miles at the dealer. No need to modify fuel stations.

  • xcelxcel Posts: 1,025
    Hi Electrictroy:

    Your source is incorrect. Ford is looking at alternatives but they have already designed the co-fuel system for use with the Meta-One. I do not think it is a practical solution given the oil companies involvement but it is one that works.

    Good Luck

    Wayne R. Gerdes
  • Perhaps.

    No one's mentioned the VW Lupo 3L. It uses a tiny 3-cylinder engine to achieve 70mpg city/88mpg highway!

    Also, it has the ability to turn-off the engine when stopped, like a hybrid.

  • yerth10yerth10 Posts: 428
    Are you sure it turns off the engine. Then it must be using a small motor for this purpose and hence its a MILD HYBRID.

    Is it a Diesel Vehicle. Hope this vehicle comes to USA.
  • Well, if you want to be technical, ALL cars use an electric motor (aka the starter). Does that make them hybrids?


  • joebeattjoebeatt Posts: 50
    I'm from Europe and I'm amazed to see the enthusiasm that seems to be building up for diesels in the USA. The VW Lupo TDI in a discussion on cleanest cars!!! Please don't follow the European example. Diesel is so amazingly dirty, it kills millions of people around the world every year. Read about it on and especially the latest part of the article:

    The small particles which come from diesel exhaust are particularly dangerous because they are coated with a mixture of chemicals such as polycyclic aromatic hydrocarbons, nitroaromatics, benzene, dioxins, and other toxicants. The particles act like a special delivery system which places these toxic chemicals deep within our bodies. Some asthma medications use the principle of delivering a beneficial drug in a fine inhaled aerosol. Diesel exhaust is like a perversion of a drug delivery system which delivers hazardous toxicants into our lungs. The particles are retained in the body along with the toxic chemical hitchhikers which would otherwise be quickly eliminated.
  • gagricegagrice San DiegoPosts: 28,847
    I wish he would give some indication of the cost. The range is fine for me. The last I heard they were well over $100k to build. If the tanks are like CNG they are very delicate, and need federal inspection every couple years.
This discussion has been closed.