Consumer Reports eh what?

Discussion in 'Prius c Main Forum' started by mahout, Jul 6, 2013.

  1. mahout

    mahout Active Member

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    The recent CR article, pg 50, cmplains about hybrids not achieving rated mpg. I suspect its primarily the Detroit hybrids they're talking about but they insinuate Toyotas and Hondas as well, which I have found to be pretty close to their rated mpg. In limited access I have found Deroits hybrids do indeed get noticeablely less mpg than ratngs and my experience with Detroit would certainly agree they go well outside the box to get higher ratings, beginning with specialized computer programs that 'latch onto' the official computer test programs run on dynos. Few drive that way but it is a valid comparison as all tets are alike.
    In any case, I'd like to hear from others if they get within 5% of the official ratings on mpg - or if you don't. I am far as you can get from the offiocial driving program used to compare mpg and yet I easily get within 5% at 46 to 50 mpg. So what mpg do others ge on a tankfull?. Within 5%? Short trips don't count BTW. A 10% variatiomn is acceptable but more isn't.
    Thanks.
     
  2. bisco

    bisco cookie crumbler

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    i think reasonable driving will get you epa numbers. perhaps extreme hills, high speeds and severe weather might have a negative effect. i always exceed epa and so does my wife who is a bit more lead footed than myself.:cool:
     
  3. Skylis A

    Skylis A Senior Member

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    Am I missing something? I thought that C-MAX was the only well-known hybrid that was getting below the EPA fuel economy.
     
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  4. SquallLHeart

    SquallLHeart The Techie Guy

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    hmm.. since i've had the car.. with all the miles i've put on it (over 37K)

    my complete average MPG as of today is at 58.2 mpg.. (calculated and data maintained at Fuelly.. check sig)

    yeah.. i'm pretty sure i'm over the EPA rating.
     
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  5. Skylis A

    Skylis A Senior Member

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    As am I. In fact the last 120 miles (my current Trip A) has been nearly all short trips (like 1-2 miles) and I'm averaging 54 mpg. EPA city rating is 53 mpg.
     
  6. SwhitePC

    SwhitePC Active Member

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    I'm averaging 55+ mpg in town and 50+ on relatively flat highway
     
  7. Drdiesel

    Drdiesel Active Member

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    A lot of the problems with EPA ratings "VS" actual MPG has to do with the operator of the vehicles.
    Anyone not familiar with driving a Hybrid will get lower MPG's When I got my first Prius, I talked with
    several new Prius owners that reported low MPG. One was getting 36 MPG with his. I did an extended
    road test with the C-Max Energi plug-in and was able to get 54 MPG with it. It's a great car and has major power
    output over the Prius line. The C-Max Hybrid is a different story. It's poor MPG was realized right away.
    It only get's 38 MPG as most have reported. They both out perform the Prius line, but only the Energi plug-in can
    match the MPG numbers. The only reason I'm not driving a C-Max Energi is the price was $10K more than my C and the dealer was a complete as_hole. They didn't deserve my business :eek:

    Oh yeah! I almost forgot. I'm getting 52 MPG on average.
    I run higher than specified tire pressures and I know how to drive a hybrid. Unfortunately, YMMV :ROFLMAO:
     
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  8. WD0AFQ

    WD0AFQ Active Member

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    The only time I get less than advertised is when it is winter or hard winds. I am talking road trips.
    Dan, who could not be happier with our purchase
     
  9. winnertakesteve

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    On short trips in the city I'm lucky to break 40mpg, even in summer weather. I get high 40s on the highway, and low-mid 50s if I only take back roads and go slower than the flow of traffic. I know it's better than I'd be getting with most other vehicles, but it's still a little disappointing that after 10 months tracking my tanks on fuelly, I seem to be getting worse than average for the prius c.

    And as a note, I am the least aggressive driver imaginable. I keep out of the red "power" zone as much as possible, avoid air conditioning or use a very low setting, try to pulse and glide / roll to stop whenever possible.
     
  10. Drdiesel

    Drdiesel Active Member

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    Register with Fuelly and you'll know exactly what your MPG's are.
     
  11. Drdiesel

    Drdiesel Active Member

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    What air pressure are you running in your tires ? Is the vent for the traction battery blocked ?
    It's just above the left rear floor pan. Open the left rear door and have a look. If it's blocked,
    you battery can't cool off and will not be efficient because it's to hot.

    I run 42 PSI front and rear. I drive it a little hard and still get 52 MPG overall. Also check your oil level.
    If it's past the full mark on the stick, the ICE will work harder to run and reduce your MPG's.
    Oil viscosity also plays a role here. It should only be 0w-20 synthetic oil. I use Mobile 1.
    Check all these things. I bet your MPG's will improve :cool:
     
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  12. Fauxknight

    Fauxknight Active Member

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    I get 60+ normally.

    With rain or A/C worthy weather (high heat + humidity) I still get 56-57.

    Beating the EPA estimate even under the worst conditions.
     
  13. C4me

    C4me Junior Member

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    I will reg on fuelly and see but I get great mpg's. They must be referring to the other hybrids not Toyota. I was on all the different forums before I bought my priusC and it seemed like hardly anyone got what the cars sticker said it was supposed to. I almost gave up until I got on the prius forums. It was the only forums where most people seemed able to actually get higher than the sticker MPG's. That is what impressed me enough to finally sell my BMW

    I avoided Prius's because I thought they were ugly and plastic and designed for people that did not even want to sit in a car with any animal products like leather etc which I love! But the C is adorable and I am making it awesome thanks to all you guys here and your help. And my Clazzo leather seat covers rock!
     
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  14. WD0AFQ

    WD0AFQ Active Member

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    I am with you. I run the posted speed limits on interstates and normally get more than advertised mileage. I can hardly see anyone getting much better on a long trip with one of our cars. I would never have bought a regular Prius due to looks. Just can't get past the way they look. But, they are a very popular car around here so others don't have my hang up
    Dan
     
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  15. wjtracy

    wjtracy Senior Member

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    I believe EPA MPG testing is with 100% gaso (no ethanol) and their out-dated test has 55 MPG max speed limit. Not sure if Consumer Reports is using ethanol E10, but they do their own MPG rankings at closer to normal highway speeds. Let's face it many places today people going 75-80+ Miles per hour and so way no to match EPA MPG ratings since speed has a large negative impact on MPG. In that sense, no car tested by CR will meet EPA ratings.
     
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  16. 1911Tex

    1911Tex Junior Member

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    Consumer Reports, call me. My C4 averages 53-54mpg city and highway. I don't do anything special; except keep tires 1# over recommended and once in a while, hypermile when I remember. C/R, I will happily let you drive my C.
     
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  17. rjdriver

    rjdriver Active Member

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    CR's city driving test is brutal. Its short with multiple stops and starts. No car can do really well at at, yet the Prius C has the best city rating of any non electric car CR has ever tested. They even called it "stellar". Nothing at all like the EPAs city test. Unless your city driving is done primarily in places like mid town Manhattan, you're more likely to get the EPA mileage than you are CRs.

    My non-highway driving, which is mostly rural roads with some stop and go mixed in is averaging 60 mpg. Highway is around 50 mpg if I keep it to 70 mph or less.
     
  18. Mendel Leisk

    Mendel Leisk Underfoot

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    We've never got anywhere near the Canadian ratings. To be fair, I think they're acknowledged to be wildly optimistic, and will shortly be revised via a more realistic testing method.

    For us, it's mostly short trips, in town. But occasionally out of town road trips. The Prius is at it's best at extended in-town driving, with light traffic, I think.

    Our best road trip mileage was around 4.2 liters per 100 km (compares to 52~53 US mpg), which is still higher (worse) than the official highway rating of 4.0.

    And 3.7 for in-town driving? Not going to happen, LOL. Still, obviously, this is by far the best car we've had for mileage.

    Prius - Canadian fuel economy rating.jpg

    (See I managed to select 2013 year. Thought I'd picked 2010. Anyway, checked: no difference.)
     
  19. winnertakesteve

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    We are pretty far apart geographically, but your description of fuel economy performance sounds very close to my own. With very little space between lights I downtown Toronto, my C performs at its absolute WORST during my daily inner-city commute. 6-7 l/100km is a frequent reality. Less dense city driving / low speed highway driving is the only way I can get close to the fuel economy posted by others. I wish there was a way to sort fuelly by very specific regions (ie Toronto, Ontario) and see if my specific region is generally tougher on fuel economy.

    MrDiesel, thanks for the tips and I will be sure to look into them! I set my tire pressure at high 30s, which i hoped would deliver reasonably good performance.
     
  20. Drdiesel

    Drdiesel Active Member

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    You do realize he's driving a Prius and not a Prius C. Also the chart is for a Prius and not a C
    You should bump your tires up to at least 40 psi, IMO.
     
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