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Post Your Van Gas Mileage Here

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  • fred222fred222 Posts: 200
    I noticed when I was filling up the other day that the station that I usually buy my gas from has "10% Ethanol" stickers on every gas pump. I also recently read that engines that run on ethanol get significantly less gas mileage. So my thought is this:
    - If the gas stations start adding 10% ethanol to their gas, should we not expect to all see a drop in MPG across the board (probably a noticeable drop at that)?
    - Based on the article I read it should be somewhere close to a 4-5% drop overall MPG.
    - I would expect someone that normally gets 24mpg to get 1-2MPG less...

    Has anyone noticed a recent drop? Thoughts?


    Each fuel has a different energy content per unit mass. Diesel is higher than gasoline and ethanol is lower. For those who are interested, hydrogen has the lowest energy content of any and the natural gasses are close behind. The energy content increases with the number of C-C bonds vs C-H bonds. That is why diesel (C12 avg) is higher than gasoline (C8 Avg). Hydrogen has only H-H bonds and methane (CH4) has only C-H bonds.

    We should be buying fuels based on energy content and not mass. That would change the relative costs significantly.
  • sc00bssc00bs Posts: 87
    did a deal on this. They also tested some other online claims. Myth busted was the result.
  • sc00bssc00bs Posts: 87
    did a deal on this. They also tested some other online claims. Myth busted was the result.
  • rorrrorr Posts: 3,630
    "A lot of people are saying that, but if they are testing it in a auto, where is all this energy coming from to power it? I think only time will tell."

    If it REALLY worked, then why stop with powering a car? Why not a giant power plant run on water?

    What is being described breaks down to a perpetual motion machine. They are claiming to get more energy OUT of the system than is being put INTO the system.

    Again, the laws of physics and the laws of chemistry DICTATE that electrolysis (the act of passing an electrical current through water to break down the molecular bonds between hydrogen and oxygen) will consume more energy than can be gained.
  • dtownfbdtownfb Posts: 2,915
    <<<If it REALLY worked, then why stop with powering a car? Why not a giant power plant run on water?>>>

    They do make power plants tht run on water. They're called hydroeletric plants.
  • hansiennahansienna Posts: 2,312
    LOL. However, the Sierra Club wants to demolish all power plants so the rivers can frow freely as they did in the dark ages.
    There would probably also be those opposed to minivans that run on water. :shades:
  • rorrrorr Posts: 3,630
    "They do make power plants tht run on water. They're called hydroeletric plants."

    No, actually hydroelectric plants are run on gravity. Water is just the medium being used to transfer potential energy into kinetic energy.

    Actually, I suppose cars could run on the same thing. Unfortunately, the dealerships would all have to be located at the tops of hills; and you'd have to trade in the car when it got to the bottom......
  • cljnmajcljnmaj Posts: 3
    I own a 2002 T & C I purchased in February. I was told at the time that it should get around 18 mpg city/25 hwy. Since that time I have consistantly gotten around 11mpg. I drive almost all in-town. I took it back to the dealer who has tried several things to fix the problem-cleaning the fuel injectors, spark plugs, oxygen sensor to no avail. Initially, everyone seemed in agreement that this was a problem, but now they have decided that they are washing their hands of it. Since the vehicle is throwing no codes, they won't try anything else. They now say the mileage isn't that bad. Has anyone else had this poor of fuel mileage? Any suggestions on what might be wrong? Please let me know. Thank You.
  • hansiennahansienna Posts: 2,312
    My 2002 T&C LX had an OVERALL average of 22.3 MPG and the LOWEST it got was 16 MPG in the winter in city driving only.
    It got 26.6 on one 1400 mile round trip and 28.2 on another 1400 mile round trip last summer.
    Your T&C reminds me of a friend's Volkswagen bus that got 11.1 MPG on a 200 mile round trip when driving at 55 MPH. He had to refuel 3 times during that trip and the VW dealer told him there was nothing wrong. :sick:
    There WAS something wrong with it: a defective cylinder head temperature sensor and air flow control box. After another VW dealer fixed it, he got over 26 MPG on road trips.
    Something is wrong with your T&C but I would have no idea what to do in addition to that which has been done. I think some vehicles of any brand are just a :lemon: .
  • cljnmajcljnmaj Posts: 3
    I just got back from picking up my T & C this afternoon. The only good thing is that the Sales Manager said that he wasn't done yet. He wants me to drive it for a couple of tanks of gas and see if it is improved at all. He thinks that there may be a leak in one or more of the fuel injectors, but once again, since it is not "throwing a code", he says he can't do anything. :confuse: He is hoping that the problem will progress, and a code will be triggered. I guess I should feel a little lucky, some dealerships would tell you that your out of luck. Doesn't help too much though with these gas prices. You know it's bad when your V8 4WD p/u gets better mileage. :cry:
  • marine2marine2 Posts: 1,155
    Are you taking your mileage off the overhead computer or doing it by hand? If doing it by hand or hand held computer and you know it's right, there are a number of things you can do to help bring up your mileage in city driving.

    It's a fact, stop and go driving kills mileage. You can help by looking ahead at the traffic lights and trying to time them by adjusting your speed, so that you can make the light. It may mean speeding up a little, or slowing down a bit. That can be especially important with pressure activated lights. One where as soon as the last car goes through, the light will turn red. If your hanging back a few seconds, you'll never make it.

    Taking off from a dead stop uses a lot of fuel. If you take off slower, you'll burn a lot less fuel. If you take your foot off the peddle a half block away from a light you know you can't make and coast up, you'll also save on gas. Try and keep your RPM's under 2,000 and you'll get better mileage. Keep a couple of pounds more of air in your tires will help. I don't do that traveling on the highway, but it shouldn't hurt in the city.

    Try using your a/c less will help a lot. Let your fan bring in outside air as much as possible. Keeping the back vent windows open will move the air or a/c better through out your van
  • cljnmajcljnmaj Posts: 3
    Thanks for your input. I have checked the milege by hand and it is correct. I will try some of the things you have suggested, although I do live in Bakersfield, Ca, so no A/C is out of the question. :)
  • dc_driverdc_driver Posts: 712
    Just finished the first leg of a road trip with our new 06 Honda Odyssey EX-L (3 weeks old). We averaged 24.4MPG in about 70highway/30city driving. We had quite a bit of stop and go traffic, had a fully loaded minivan with three people and a lot of stuff, and the A/C was on the whole way..

    Very happy. I was not able to utilize the cruise control as much as I would have liked, and the van is not broken-in yet.. I think the highway EPA numbers are realistic with cruise on most of the way....

    We love this van...
  • duperduper Posts: 127
    Just finished a 1100 miles trip to Vegas and back from the Bay Area and average about 23-25mph on freeway at 70-75mph hitting 80+ once in a while.

    The van only has 2255 miles now so hopefully it'll get better as it ages :)
  • dsrtrat2dsrtrat2 Posts: 223
    Good to hear about your good MPG. Lots of people need to see your real numbers on MPG.
  • zebra5zebra5 Posts: 44
    First 5 tank refills over first six weeks (1369 miles total), we are averaging a whopping 16.0 miles per gallon. Almost all city driving with two preschoolers in the back, A/C running constantly (this is Dallas).

    Not impressed.
  • ontopontop Posts: 279
    Move. Dallas is harsh. I doubt any vehicle gets decent mileage in those conditions.
  • hansiennahansienna Posts: 2,312
    Actual mileage driving on an open road is the ONLY situation where an honest, fair comparison can be made between vehicles....and then the mileage must be computed on a round trip. ;)
    My Chrysler T&C LX gets 35 to 36 MPG between Salt Lake City, Utah and Mesquite Nevada but will get 23 or 24 MPG between Mesquite and SLC. (Downhill with a tail wind vs uphill with a head wind). The difference between Mesquite Nevada and Anaheim California and the return trip does not vary so greatly but the overall average for the round trip Salt Lake City to Anaheim and return can be as high as 28.2 MPG on one trip or as low as 26.6 MPG on another trip. :shades:
  • veritasusaveritasusa Posts: 72
    My latest issue (July 2006) of Car & Driver has an interesting article about ethanol fuel.

    According to the facts presented in this issue and figures they got when they tested the same vahicles on both gasoline and E-85 fuel, the brave new world of energy independence will not only NOT be the utopia that the champions of ethanol fuel would have us believe, but fuel economy will be about 28% less with E-85.

    Oh goody . . . Three dollar per gallon ehtanol and more of it to buy to cover the same distance. I can hardly wait!
  • rolojroloj Posts: 12
    You a and I are one of the few people that are getting lower mileage per gallon. I am getting 14 with normal driving and 13 with a bit hard driving. Seeing all those messages I am wandering whether something needs to be done to my vehicle or if all of those people knows how to calculate the mileage per gallon. Maybe we don't. What do you think :confuse:
  • hansiennahansienna Posts: 2,312
    Gas mileage depends more on the type driving than any other factor.
    I compute my gas mileage by dividing the miles driven by the amount of gasoline used to fill the tank.
    City driving, stop and go, winter conditions, and HOT weather running A/C when vehicle is not moving have a most adverse effect on gas mileage. :cry:
    My Sienna will get 30 MPG on a round trip when it is cool and the A/C is not used much but it can drop to 22.4 MPG in the winter when there is more city driving than highway driving.
    My T&C got 28.2 MPG on a 1400 mile round trip but has also got as low as 16.0 MPG in the winter when the driving was almost all city driving. Overall average for my T&C was 22.3 MPG and so far the Sienna is 26.0 MPG. ;)
  • stickguystickguy Posts: 14,626
    16 is about right, if you do lots of short hop, stop/start on/off sit in traffic driving. That's what we do in ours, and also get about 16-17 this time of the year.

    But, on a trip, we can pull 26 in mixed high speed and local driving.

    Weight kills mileage around town, since you spend a lot of energy getting all that mass moving. Not as much of a factor on the highway.

    2013 Acura RDX (wife's), 2007 Volvo S40 (daughter stole that one), and 2000 Acura TL (formerly son's, now mine again)

  • zebra5zebra5 Posts: 44
    Honestly, I don't believe there is a mechanical issue with my car. Consumer Reports tried to warn me: this car gets significantly lower mileage in real world tests than the "theoretical" EPA numbers. Honestly, regardless of what they advertise, I'd have expected worse mileage relative to Sienna and other minivans based on ithe Ody's weight and horsepower.

    No, I think I'll follow the advice in message #1568: move from my hometown (maybe to the Polar Cap, where I shouldn't need the A/C much), and while I'm at it, get rid of my two preschoolers to reduce cargo weight. Thanks for your advice, ontop.

    We've got a road trip coming up on which we'll get a chance at some real highway miles. I'll reserve complete judgement until we're back.
  • dc_driverdc_driver Posts: 712
    Consumer reports testing stated that almost ALL vehicles (not just the Odyssey) did not get the advertised city EPA using their real-world testing procedure. They found the highway EPA to be closer.. At any rate, the EPA testing is changing very soon to reflect more real world driving conditions..

    I do not disagree. We have been babying our EX-L and are getting 18-19mpg city, and close to 25mpg highway. I would expect with summer fast approaching (and the A/C cranking even more) and us driving the van a little harder to see the MPG drop 1-2 easily.. However, if we coasted more between stop lights, drove a little easier, and used cruise control more (VCM automatically kicks in with cruise), I believe we could get close to both the city and highway EPA's.

    I was a little scared that we would get worse gas mileage with this van than we are getting. At 18/25MPG I am very happy. I would love to get 20/28, but I like to open the engine up every once and awhile.
  • marine2marine2 Posts: 1,155
    In mostly city driving, I try and time the lights as much as possible. If I catch a light, when taking off, I try and keep my RPM's at 2,000 or below. I find I can increase mileage by keeping the RPM's under 2,000 as much as possible.
  • jgodambejgodambe Posts: 4
    My oddyssey is a little over a month old
    It gives me 17 in the city and 26mpg when I did a trip from IL to MI with AC running
  • fx35awdfx35awd Posts: 218
    Do you receive negative feed back from other drivers like dirty looks on the road when you keep your rpm at 2000 and below when you are starting out at a stop light? I get a lot of them even when I keep slightly below 3000 rpm in my Infiniti FX35 AWD, despite of being on the slower lane too. I time the traffic light as well and ever since I started driving. I just think it is more of smoother drive and ride, versus breaking at the last minute and starting again at a faster pace in the 4000-5000 rpm range.
  • leefarmleefarm Posts: 14
    Well , we just passed the 10,000 mile mark on our 2 1/2 month old kia sedona and the average mpg is around 23 we drive on mostly highway. .on highway alone it ranges from 20 mph to 27 mpg depending on conditions and vehicle load . In the city we have gotten 10 mpg to 23 mpg(I can't help but stamp on it sometimes..) and yes i have gotten dirty looks from people when i start out very slowly at a red light.
  • dtownfbdtownfb Posts: 2,915
    I think you should avoid jack rabbit starts esp. in city driving but you also have to be conscious that you are not the only person the road. timing lights is nice to avoid braking but sometimes not practical. Moving so slowly off the line forces others behind you to constanly brake which slows up traffic and waste gas.

    A nice smooth acceleration is the miidle ground esp. if you have a series of traffic lights. The transmission will shift when it needs to.

    BTW, that FX35 needs to be "worked out" every once in a while. lol
  • vipinguptavipingupta Posts: 21
    My Sienna now has 12,000 miles on it. I have been getting around 21.5 mpg in city driving and around 23-24 mpg on Highways. My City driving involves morning commute on busy state highway and some back roads.
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