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Honda Insight MPG-Real World Numbers

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  • stevedebistevedebi LAPosts: 3,732
    "Well I know Toyota advertises that the Prius does it. It seems they think this helps the overall mileage. If follows that the competitor would have also wanted to design in a similar feature. "

    It is not really possible to compare the Toyota HSD with the Honda IMA. The Toyota system is designed such that the battery can drive the transmission without the engine turning. With the Honda, the engine is always turning. Completely different technology and design philosophy.

    The Ford system is similar to Toyota; it can run the vehicle by electric alone at speeds up to 40 MPH. After that, the engine is turning, even if it is not using any gas.
  • kidsidkidsid Posts: 10
    Have you seen all of the comparison reviews on youtube? All the articles in print comparing the two vehicles? Ya know like MotorTrend, Car and Driver?

    The bottom line is that they're both hybrids Steve. The engineering details don't change the fact that they were both designed with the same purpose in mind. I assure you they can be compared.

    Let's see:

    The 2010 Prius has a EPA mileage rating of 51/48 while the 2010 Honda Insight has a EPA mileage rating of 40/43.

    See? I just did it myself! :-)
  • My 2010 Insight graphically displays its current MPG on the dash while its running. It always displays more than 50 miles per gallon cruising at 60 MPH (on level ground). I'm on the highway almost exclusively as a daily commuter.

    My Insight displays its overall miles per gallon on the dash as soon as I turn the key in the ignition: 46.8 MPG

    Either way, the 40/43 numbers seem off to me.

    It's astonishing to me that the EPA (a government agency) could have possibly made a mistake.
  • I'm averaging 44.3 MPG on my 2010 Insight EX.

    I have rented a Prius for as long as a week and averaged about 46 MPG. Not sure why the EPA estimate seem low for the Insight. I believe their test procedures are the same for all vehicles, but the hybrids have different modes that they can be put in. They never mention what the mode the hybrid vehicles were in during the testing.

    I read somewhere that their tests require that no special mode be engaged. Don't know if this is true. If it is, then ECO mode, Sport mode or EV mode would not be engaged on Prius or Insight.

    Perhaps you could take your Insight out of ECO mode for a week and see if you get results that are closer to the EPA's results. Let us know your findings.
  • stevedebistevedebi LAPosts: 3,732
    edited September 2011
    "The bottom line is that they're both hybrids Steve. The engineering details don't change the fact that they were both designed with the same purpose in mind. I assure you they can be compared. "

    They cannot be compared in terms of the design. It takes a bit of study about how they were engineered. There were some statements being made that did not match the engineering.

    One can compare mileage if you like, but that does not change the way the two system achieve that MPG - which is totally different. Yes, they both have batteries and electric motors, but they are used in radically different fashion. If you are not interested in the technical details, that is OK by me, but some people are interested...
  • I have a camry hybrid (2008) and an insight (2010) so I have lots of experience with both drive systems. Although the pure electric Toyota mode feels very cool (like when searching for street parking and circling the block using zero gas), even with the gas on all the time, the Honda gets amazing mileage. I find the Honda takes more practice to pull really high mileage, but that said it feels like the more you try, the more it delivers. To avg more then 40 mpg with the Toyota seems futile, whereas I am at 57.6 avg over the last 14000 miles and it feels like if I wanted to I could get even higher numbers. I have to agree with those who note the EPA numbers seem wrong - but it is wrong for both cars, so perhaps it is the hybrid driving style they don't properly apply that returns these results.

    As a side note, I have been amused by the dialog between you and spunjorno. You seemed spot on in your technical analysis in your initial response about pure electric use to get highest mileage in the insight, but his empirical approach delivers better milage. I tried to test using assist more to get more mpgs, but found I got much less. The reason was I had to use more throttle to get more boost. Following his suggestions, most of which I actually learned from the "Shell answer man" in the 60's, gives the best mileage regardless of vehicle. The advantage the Honda has is it's coach shows instantaneous mileage vs avg very clearly so you can set easy to monitor goals.
  • I heard from the dealer that when the EPA testing is done ECON mode is not used. I do not believe that the ECON mode would have that much bearing on the fuel economy.
    My note is that it really makes a difference driving 50-55 as opposed to 65-70. Economy drops from 57mpg to 46mpg.
  • eliaselias Posts: 1,828
    For understanding the hybrid 'psychology' of driving, seriously great analogy re the stored battery-energy being like a $5 you found in your pants pocket that you forgot was there. (but let's make it a $20, why not?)
  • jshowjshow Posts: 2
    So far so good with the mpg listing. I have the 2011 Honda Insight LX as a second commuter car. With the stock steel wheels and Dunlop Tires I was averaging about 38 overall with mix freeway and city.

    I changed wheels and tires about 2000 miles ago to lighter alloy wheels by konig and put the bridgestone ecopia 422 tires on. Now I am getting 41.5 overall. On one mostly freeway trip to Vegas I got it up to 46.5 mpg. So unlike US brands (GMC) I think Honda really states the correct MPG's.

    Great lower cost alternate to Prius, funner to drive, lighter, looks better, more front legroom (No weird Middle Console thing). But seats could be better quality.
  • sandman_6472sandman_6472 Coral Springs, FLPosts: 2,576
    edited November 2011
    I found the front seat pretty uncomfortable for my bad spine and was not much more comfortable in the back seat on a small ride. The headrest was also canted a bit to forward which created immediate neck pain so unless they change the seats, this car is one I could never own. Also found the rear split hatch window difficult to see out of, not a deal breaker but didn't feel safe looking out the rear. A shame to because I really wanted to like this car and the stellar mpg's are just a bonus...I also did not want to get a Prius for the extra price plus the weird dash layout. So I'll keep on truckin' in my '06 Civic, which is still in great shape and tightly screwed together with nary a rattle or squeak...it does help that I am the sole driver of it 99% of the time. And besides my son coming home for a few days/year, that's the way it'll stay!

    Just like you, I had changed out the stock steelies to a set of '05 SI alloys and am wondering if in fact my mpg's improved with that swap? I don't keep detailed mileage records so have no idea if this could be true...hopefully it has helped. The highway mileage ain't to bad but my city driving has been always around 30 from my quick computations...in specs to be sure but nothing to write home about but not worth it to trade for a few more mpg's.

    The Sandman :) :sick: :shades:

    2014 Hyundai Tuscon SE/2005 Mazda 3s/2008 Hyundai Accent GLS/2009 Nissan Versa SL hatch

  • Sandman, 30mph in city? You must drive pretty aggressively. I have 5,500 miles on my 2011 and have averaged 45 overall, almost all city. I do keep detailed records and what I calculate and what the car says is at least 2 mpg off. Car says almost 47 but that is high.
  • I have to agree - the computer showed my recent 15000 miles achieved 57.4 MPGs (I have about 60K on this 30 month old vehicle), I had to drive pretty conservatively to achieve that, but if I drive as aggressively as I can I don't see how I could average 30.
  • sandman_6472sandman_6472 Coral Springs, FLPosts: 2,576
    No, hardly drive at all. My trips are usually under 10 miles with constant a/c usage. On the expressway, averaging 36 or so but stop and go city with a/c...30 or 31 tops. But not really a problem as I do a full tank every 3 to 4 weeks since October 2010. And now with season officially in full swing, traffic in South Florida will be that much worse resulting in longer traffic delays and worse mpg's for all. The price we pay for living in paradise!

    The Sandman :) :sick: :shades:

    2014 Hyundai Tuscon SE/2005 Mazda 3s/2008 Hyundai Accent GLS/2009 Nissan Versa SL hatch

  • Just throwing my hat into the ring... I have a 2010 Insight EX dealer demo model I bought in May of 2011. Started out with something like 10 miles on the odometer. Since then, I've racked up 11K miles, and my average is 44.0 MPG, at least according to the dash display. My commute is 35 miles each way, mostly on the highway, but maybe 7 miles on local roads. On days when I'm just cruising along with little traffic, I can get it up to 51 MPG, but short trips and stop and go traffic really kill the mileage, obviously. I drive with the Econ mode all the time, although according to Consumer Reports, it doesn't make much of a difference in mileage since drivers naturally fight the softer acceleration. Curious to see how much the MPG suffers now that winter's here in NY.
  • sandman_6472sandman_6472 Coral Springs, FLPosts: 2,576
    Honestly, besides the great mileage, how do you really like the car as a daily driver? Does it put a smile on your face? I know my '06 Civic still does that even though I yearn for a 2004 to 2009 Lexus RX330...it's a blast to throw around when needed and it does everything right except having very uncomfortable front seats. I now look for seat comfort as I have some intense spinal issues and I need comfort first and foremost...the RX covers that area nicely and I'd happily pay the premium to own one and drive it. Just not ready to pull the trigger since my Civic has yet to break the 33k mark and it does everything else right, seems silly to trade it in as I know I won't get all that much for it. I'd love to get $10k and put that down on a $20k RX...if that would be the case, I'd sign right now!

    The Sandman :) :sick: :shades:

    2014 Hyundai Tuscon SE/2005 Mazda 3s/2008 Hyundai Accent GLS/2009 Nissan Versa SL hatch

  • I've had the 2011 for almost 2 weeks now and i'm not seeing mileage anywhere near what the sticker suggested. i'm getting about 33 mpg. driving in both city and highway. i'm watching the green on the speedometer (which i guess is where you should try to keep it) but wondering if there's a certain way to drive hybrids? what am i doing wrong? bought it specifically for the mpg and chose it over the prius b/c of the price, not to mention their stupid console design.
  • Hi,
    I got a new 2012 Insight in Nov. 2011 with now about 2000 miles. I drive very conservatively, that is 55 mph in 55 zones & 60-65 on highhway. I try to keep my RPM under 2000, mostly stays around 1500 where it's flat. The car gets good mileage at about 50 mpg doing the "real"math with Excel after fill ups.(display says 52 mpg).
    As you mention, keep the green light on, use the eco mode (never driven the car without it) and avoid sudden acceleration.
    You really should get more than 33 mpg.
    Good luck.
    P.S. I did notice I loose mileage when it's get really cold, like 20 F.
  • albalmaalbalma Posts: 10
    edited February 2012
    You should keep in mind that during the winter your mileage goes down. Also, if you commute long distances with a lot of highway traveling, you will get much better mileage than if you only move short distances in a town. My town average must be about 38, driving conservatively, but I do have a big hill to go up in the 2.5 miles to work, so no green there if I want to keep the guys behind me off my fender. However, I use a lot less gas per month than when I was driving 22 miles each way to work and getting about 45 mpg (driving at 70mph, which is not efficient). If you are driving between 40 and 60 for most of your drive on a highway, you should get up to 70mpg or so. The perfect conditions are hard to get. If you want to get the best mpgs out of your car, you should:
    - Ease off the gas and do not try to go 0-60 fast, but rather accelerate slowly.
    - If you are cruising, get the feeling for the accelerator, so you are in the right place for your speed. It is a bit tricky, but doable: You need to decelerate a little, so your car stops accelerating and is just barely keeping the speed you are at. It is easy to give your engine more gas than it needs.
    - Some people recommend accelerating past the speed at which you want to go, and letting go of the gas a bit so the car slows down very slightly, then accelerating again when the speed goes a few miles/hour under the speed you want to go at.
    - Let your batteries charge when breaking, break early and stop slowly.
    - The engine takes a while before it "loosens" to its maximum efficiency, so wait until you are past the first 10-12,000 miles to get the best mpg.

    Finally, if you are commuting a short distance, don't worry, the best way to save gas is by not using it. In any case, with your hybrid you should be getting the best mpg for your driving style, whichever it may be, the key is adapting your style to the best mpg you can get.
  • Thanks for the tips "albalma", I'll keep that in mind.
    I noted that "cinny 17" did not acknowledged any of the replies, I must be old fashioned I guess......
  • garydingarydin Posts: 1
    I have a 2010 Insight. When driving on a flat area, constant speed over distance the MPG is optimal. If I drive with lead foot with Econ off and over speed about 85 it get the worse MPG. Cruise control with Econ and using Paddle shifts provides good MPG. Just a couple days ago I tried no Econ, no cruise, and no Paddle shifts. I used the instant MPG gage altered my speed to maintain 50 + MPG. I live in a flat almost hill free area. But, when I approached rises I simply gently let the speed slow down to keep 50 MPG. My speed range from a high 75 mph to a low on steep rises of 58 mph. But, I was able drive based on not speed but MPG. My question is why don't we have a cruise control that imitate what I did? Only diff would be an ability to set the acceptable low speed to avoid extreme slow downs on steep grades. Essentially a dual mode cruise control , one to maintain set speed and another to maintain set MPG. Note when manually altered speed maintain MPG it did get about 48 MPG. Of course this was all Interstate driving. Also, I know that Econ mode does smooth out acceleration with or without cruise. But, it doesn't seem to consistent and best I ever achieved with econ and cruise is about 43 mpg. What do you Think?
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