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Ford Fiesta Real World MPG



  • phill1phill1 Posts: 315
    Get to you local Ford dealership immediately. Something is definitely (very) wrong! My 2011 Fiesta SE Hatchback with automatic transmission has produced 34 mpg City and between 41- 43 mpg Hwy since it was taken home. On the other hand, my 2012 Kia Rio5 with the same 1.6 ltr engine is producing about 27 mpg city and maybe 35 mpg hwy. Your Fiesta needs to be looked at, NOW!
  • ronelloronello Posts: 5
    @Ivan, Thanks for the inputs! I see the point you make about having a worse mpg when driving intermittently with a lot of idling time as well, versus driving steadily at hunch is that I still should not be seeing such bad numbers even with the former case. This is my first car in San Diego, I cant really compare. I'll definitely get it checked at the dealership.
  • ronelloronello Posts: 5
    @Phil, thanks for the prompt reply...I'm taking it to the dealership tomorrow, and will post my experience later.
  • iamziamz Posts: 542
    edited April 2012
    If your average for mph is 20 then you are likely sitting at traffic lights or stuck in stop and go traffic during rush hour and not moving. Like ivan 99 said, your mpg are exactly 0 when that is happening. You're also running your AC all the time. Only 24-25 mpg sounds about right to me.

    How many miles to and from work do you drive?
  • phill1phill1 Posts: 315
    Funny, I live here in South Florida, get caught in traffic on I95 as well as in City traffic. A/C is on constantly and (my) 2011 Ford Fiesta SE Hatchback with A/T still gets 33/35 mpg city and when on the highway at speeds of 75/80 mph always get between 41/43 mpg. Like I posted earlier, something is (drastically) wrong with that Ford Fiesta and it needs to be looked at immediately. Case closed! Now my 2012 Kia Rio5 LX Hatchback, thats a different story. This (dog) gets around 26 mpg city and never more then 34 mpg highway although it has an EPA rating of 30 mpg city and 40 mpg hyw. Kia Dealership says with only 3000 miles driven, it`s still just breaking in. Odd, the Ford Fiesta achieved the same mpg from day one! If sitting in traffic, stuck at a traffic light, etc would result in 20 mpg with just a tiny 1.6 ltr. 4 cyl. engine, and that seems about right, I guess one would expect to run out of gas (immediately) if they had a hemi V8, correct?
  • ivan_99ivan_99 Posts: 1,662

    He didn't say how long we went between fill-ups...just he got 26mpg and averaged 20 mph. Getting zero miles (idling) will always get 0 mpg; it depends on how long you're sitting as to how it'll affect your overall mpg average.

    That tank could have lasted him a month. 5 miles to work...5 miles back averaging 26mpg.

    26 mpg can get you 10 miles per day on one tank of gas...for a month.
    Tank (12 G) @ 26mpg = 312 miles range
    10 miles per day * 30 days = 300 miles.

    Of course this is all made up.

    He could have problems...but he didn't say any warning lights were on, or smoke was coming out the tail pipe, or it was hesitating, hiccuping, stalling, etc.

    I thought he said he was in San Diego...isn't that hilly? I remember getting 27 mpg with my Infiniti Q45 on a trip. When I would have the instant-mpg showing it was really interesting to see the mpg drop to 7-8 when there was a slight incline.

    Anyway...I suspect they'll come back and error codes, everything is fine.

    The hemi would run out of gas sooner...even with a 19 gallon tank :)
  • iamziamz Posts: 542
    Hey phill1,

    Just for kicks, take a look at your average mph reading on your Fiesta and report back if you would please. Mine is usually between 40 and 45.
  • ronelloronello Posts: 5
    @All, thanks for the inputs! Took the car to the dealership yesterday, and the mechanic drove the car for 20 miles (mostly highway miles) and reported 42.8 mpg to me using his IDS system (in addition to the dash). No defects were reported to me at this time, and he suggested the same plausible causes for the low mpg numbers that you guys mentioned (lots of idling, excessive stop-start in traffic, etc...)
    @iamz, I drive 12 miles (round-trip) to and from work each day...
    @ivan, your calculations are pretty accurate...I have filled up a full tank approx. once a month. At this point, I dont have anything to compare to coz everyone's average mph seems to be much higher..but iamz and phil, it would be nice to know what mpg numbers you guys are getting at average 40-45 mphs...thanks again!
  • iamziamz Posts: 542

    my long term average is between 39-40 mpg. In the winter I get around 37 mpg and in the summer I get around 42 mpg. I have a long 90 mile, round trip commute that is mostly rural 2 lane highway where I drive about 55 mph.

    I've found through testing that my Fiesta doesn't reach full operating temperature until I've driven about 7 or 8 miles (in the winter). A car won't get its ideal mpg's until the engine reaches its normal operating temperature. So, with your short commute, you're unfortunately getting hit with a penalty there also along with the stop and go driving of city traffic.

    Take it on a road trip and I think you'll be pretty pleased with the numbers you'll be getting on the highway.

    Good luck! ;)
  • phill1phill1 Posts: 315
    I never pay much attention the the on board computer read-out indicating the vehicle MPG. I think its never very accurate and the best way to know what kind of Fuel Economy you are getting is simply dividing miles driven by fuel used. I also don`t pay much attention to exactly what speed achieves the best fuel economy either. I drive to the speed limit in city driving plus 5 mph when driving conditions permit and usually drive the speed limit plus 10 mph weather and driving conditions also factored in. I don`t fixate on 1 or 2 mpg changes regardless of what speed I`m traveling at. I just know that the Ford Fiesta "exceeds" the EPA ratings, (when have you seen that lately) while my 2012 Kia Rio5 gets no where near its EPA rating, both vehicle being driven under the same conditions identically. Great Job Ford, not so much Kia. I do notice that the Fuel Level Indicator moves ever so slowly on the Ford Fiesta while the same indicator on the Kia Rio5 starts moving downward as soon as you leave the filling station. 30 miles driven and the indicator has dropped from slightly (over) Full to down an 1/8 of a Tank. I`m sure the same is also true for the Hyundai Accent which uses the identical mechanical components.
  • xwesxxwesx Fairbanks, AlaskaPosts: 8,391
    edited April 2012
    I agree with iamz; ronello, you're looking at a perfect storm for poor mileage! Given that you don't have any other vehicle with which to compare, and given the analysis done by the dealership indicated it was operating within the expected efficiency range, I think you can rule out a definite problem with the car.

    Seems a shame to have a (fairly) new car and only drive it one tank per month! I think you need to come up with an excuse for a road trip... even a short one will do! :P
  • dann_kdann_k Posts: 1
    I've actually kept rather extensive logs of my Mpg since I didn't really buy into the 40 Mpg thing when I got the car in Nov 2010.

    I've noticed that I get my best mileage doing 40 - 50 Mph. I maintain about a 45 Mpg rate at that speed over fairly level ground.

    At highway speeds of 55+ I get about 42 - 43 Mpg.

    I have noticed that the car does go through a lot of fuel accellerating IF you're an agressive accellerator. If you're content to speed up slowly, keeping your RPM under 2500 throughout the process, you don't have that immediate quick-consumption that take 5 miles of no stop driving to get you back to 40 Mpg for your trip. I learned this over the first few months of owning the car, and when I changed my style of accelleration, it made a solid 4-5 Mpg overall improvement.

    Right now, at about 23,000 miles - having last reset my Mpg Counter at 10,000 Miles (13,000 on this "trip"), I'm averaging 38.9 Mpg. I have a 21 mile commute of which 15 are highway miles. The other 6 miles has me encountering about 6 stops on average for lights. I live in NJ - so I run the AC from May until Sept.
  • phill1phill1 Posts: 315
    You Poster`s are a "Hoot". So much detail and scientific analysis. Its safe to say, the Ford Fiesta is probably the most (non) Hybrid vehicle manufactured in the World that offers, good styling, decent interior room, an respectable performance in a B-Segment Sub-Compacy Car, period! ON the other hand the 2012 Hyundai Accent and Kia Rio, exit stage right. Sub Par fuel economy and no way reaches EPA Fuel Estimates. The Rio5, nice looks, comfortable seating, better performance thanks to "GDI" but its negated by sub-par mpg.
  • steverstever YooperlandPosts: 39,981
    A reporter is looking for a car shopper who thinks 40 MPG is a requisite before they buy. If you have recently shopped for a car, and you have only considered cars that get 40 MPG, and you are willing to share your story with a reporter, please contact with your daytime contact information no later than Tuesday, April 24, 2012 at noon Pacific/3 p.m. Eastern.

    Need help navigating? - or send a private message by clicking on my name.

  • iamziamz Posts: 542
    I can confirm everything you said. Keeping in the 40-50 mph range seems ideal. I don't want to lengthen my otherwise long commute though, so I generally drive at 55 mph. And I found the same thing you did on acceleration. Even moderate acceleration from a stop is hard to recover from. When I need to stop, going into neutral or just coasting in gear helps quite a bit too. My lifetime average after 27k miles is just above 39 mpg.
  • ronelloronello Posts: 5
    @All, I made a 2-hour trip to LA this weekend and am very pleased with the numbers-- touched 45 mpg on the highway (with cruise on), and the overall trip made 38 mpg with 80% highway and 20% city driving...this baby does exceptionally well on long trips!
    @Dann, thanks for the tips! I'm a pretty conservative driver and never push the engine beyond 3000 rpm (well, at least I try not to!). It does take a little getting used to the ~3 gear shifts upto 30mph, but its a very smooth ride after that!
    @Phil, could not agree with you more...this car does way better than its EPA estimates of 39 mpg on the highway (my EPA sticker does show a range of 36-44 mpg highway though)
  • phill1phill1 Posts: 315
    As an owner of a 2011 Ford Fiesta SE Hatchback, I purchased (that) vehicle in July of 2010 because of reported excellent fuel economy as well as IMO, excellent styling. This year I replaced my aging 2006 Kia Rio5 Hatchback with a 2012 Kia Rio5 Hatchback that purportedly was (supposed) to get 30 mpg city and the (magic) 40 mpg highway. Still pleased with this vehicles styling and comfort but as far as fuel economy, disappointed. A new highly touted vehicle boasting GDI fuel injection as well as electric power steering assist and a state of the art 6 speed automatic transmission and it gets no where near the EPA Fuel Estimates while my 2011 Ford Fiesta "Exceeds" the EPA fuel estimates for both city and highway driving. Had I known the somewhat disappointing fuel economy, I would have probably picked the 2012 Ford Focus Hatchback that would have been considerably larger, more powerful and got better real time gas mileage.
  • 2011 Ford Fiesta S, 5 speed stick, Denver to LA and back, 80 mph most of the way, all interstate, minor A/C use, light load. Best tank of 44 mpg, worst tank of 38 mpg, average for 2200 miles was 41.1 mpg.

    Next trip is back east, slower speeds, hoping for even better. Car has 7700 miles on it right now, running 5w-30 engine oil, regular unleaded.
  • explorerx4explorerx4 Central CTPosts: 9,614
    In the last week, I have had a couple of 400 mile+ fill ups with my mom's Fiesta SES hatch.
    First was a mix of highway/city in the rain/defroster on and returned 34.2 mpg(403 miles/11.8 gallons).
    Yesterday. all highway from central CT to Wilkes-Barre PA and back returning and average of 42.1(405 miles/9.6 gallons).
    One leg of each trip was 3 people plus large suitcase. The other was 2 people no luggage.
    Car had 2700 miles on it last week, now 3500.
  • phill1phill1 Posts: 315
    I`m not sure if the Ford Focus meets the EPA 40 mpg Highway estimate, but as for the Ford Fiesta, I think its safe to assume it delivers the best all around fuel economy in a B-Segment, Sub-Compact Vehicle that is "non-hybrid" or without Eco-Boost (Turbo Charged) of GDI, Gas Direct Injection. When is the last time (ANY) vehicle Domestic or Foreign actually met or (exceeded) the EPA Fuel Economy Estimates? Great Job "Blue Oval"!
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