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2012+ Subaru Impreza Real World Fuel Economy



  • elg77elg77 Posts: 5
    I bought my 2013 Impreza sedan Limited 2.5 weeks ago and have about 280 miles and do 90% city driving with traffic and am only getting b/w 20 and 21mpg according to the readout on my dash which means that it's prob even less. wth?!?!
  • ateixeiraateixeira Posts: 72,587
    That's pretty ambitious for a solidly built, roomy compact with AWD.

    To get 43mpg Subaru would have to remove the spare, mount hard Prius tires, remove all sorts of safety beams, use thinner glass and metal, etc.

    Basically a new age Geo Metro with AWD. No thanks.
  • dcm61dcm61 Posts: 1,563
    To get 43mpg Subaru would have to remove the spare, mount hard Prius tires, remove all sorts of safety beams, use thinner glass and metal, etc.

    Or design a boxer diesel ... oh wait, they already did that.

    P.S. 43 mpg can be obtained on a flat highway run at moderate speeds (55-60 mph). Been there, done that on the NJ turnpike with only 1100 miles on the clock.
  • ateixeiraateixeira Posts: 72,587
    Can't complain about that mileage. Then again I tend to go about 70 on that drive, so I wouldn't do nearly as well.
  • @ronsteve, I've gotten 44 mpg on my 2012 5 dr Sp Prem CVT when doing all highway and 60 mph or less on long trips.
  • IDK, My mom got a 2012 Impreza Premium sedan, and it gets impressive milage - last trip she got 41MPG - I really didn't believe it. I figured you'd get about 33ish on highway. That said, she bought it in April and complains about engine braking, especially in stop and go city traffic (still gets 33MPG in city traffic) - I've told her to ask the dealer about the TSB next time she has a chance.

    To the other person who hated the outback - why would *anyone* with a clue buy a AWD wagon for MPG only? If all you want is MPG, you need a non AWD car - it's obvious. Heck, you probably need a Prius or really light small engined or diesel car.

    And for the people doing only 5-10 mile runs each day, if you don't need AWD, you probably ought to have looked at a plug in hibrid, or even the nissian leaf (and then had infinite gas mileage :P) ...
  • wvwwvw Posts: 19
    My '12 hatch still doesn't get more than 33 MPG on the highway- maybe 34 if it's a long , flat stretch (and no AC used in over a month). I typically drive at 70. My '08 Elantra got 35 with a 33 MPG Highway rating at the same speeds or higher. On my commute to work it's gone down to under 24- a number of stops/lights in a 4 mile trip. I've been responsive to the mileage needle all along, cutting down on unneeded acceleration. It seems to do well in the 35 -60 MPH range, but I don't often have sustained driving at those speeds. I mentioned to the dealer that I thought maybe it idles too high when you start it after a long rest, but don't know that that means much. They checked it out without the rest and said there was nothing wrong. Are you supposed to wait for the blue light to go off before you start? I usually do. Love the car otherwise.
  • saedavesaedave Chicago, ILPosts: 694
    Are you supposed to wait for the blue light to go off before you start? I usually do.

    That extra idling will lower your MPG. Start off immediately but not full throttle.
  • mblutombluto Posts: 6
    I made the OP and am still disappointed in my new Subi. However, I might have found a way to improve my mileage... I drive faster.

    No, it doesn't make much such sense to me. No, I'm not crazy, but yes, I've held all other variables constant. I am not done with the tank of gas yet, but my computer is giving me 32 mpg instead of the normal ~29. I still don't step hard on the gas, but I do cruise at 65 - 80 on the hwy stretch.

    I don't notice the down shifting/engine breaking as much, perhaps I can maintain top gear better. Hey, I get to work faster and my mileage has increased. Great.

    Next time my boss gives me a job I don't want I'm going to tell them to go to hell and do what I want. Maybe doing the wrong thing will help at work too?
  • I am in desperate need of knowing the correct oil filter number for my Subaru 2102 Imprezza. I may have installed the wrong filter I'm afraid.
  • tinycadontinycadon Posts: 287
    what filter did you install?
  • dcm61dcm61 Posts: 1,563
    Subaru part # is 15208AA160
  • nippononlynippononly SF Bay AreaPosts: 12,726
    Next time my boss gives me a job I don't want I'm going to tell them to go to hell and do what I want. Maybe doing the wrong thing will help at work too?

    LOL! I wouldn't try that if I were you... ;-)

    2014 Mini Cooper (stick shift of course), 2016 Camry hybrid, 2009 Outback Sport 5-spd (keeping the stick alive)

  • dcm61dcm61 Posts: 1,563
    Yes, it's OK. I posted the correct part # at the request of kylesmom.

    I have no idea what filter kylesmom installed.
  • I'm getting about 24 mpg right now in combined 75% hwy and 25% city driving in Mpls. Yes, that is a BAD result, however consider that I let the car warmup for about 30 seconds when it's cold. And some slipping and sliding on snowy roads thrown in there too.
  • xwesxxwesx Fairbanks, AlaskaPosts: 12,762
    How long have you had the car now, Fred?

    Both cold (anything below about 20F, and it gets really bad at -20F and lower) and snow brutalize fuel economy. So, if your mileage results are primarily winter-based, you have something to which you can look forward come summer!

    As an example, last week it was -30F here (Fairbanks, AK) for a week+. Our car's FE was 20 (vs. 26-27 during summer in same driving). This week, it is a balmy 25F (we're loving the warm temps, mind you!), but we are having heavy snowfalls. With the 12+" of new snow on the ground, our FE is still 20. Without the snow but with the warm temps, we'd likely be at 24 MPG.

    Looking at that from a percentage standpoint, that's a 15-25% drop from summer fuel economy numbers. So, that would put your average of 24 closer to an average of 30. :shades:
    2014 Audi Q7 TDI, 2008 and 2013 Subaru Forester(s), 1969 Chevrolet C20 Pickup, 1969 Ford Econoline 100, 1976 Ford F250 Pickup
  • jd_24jd_24 Posts: 92
    xwesx is right on the colder temps. I'd guess that a subaru needs at least 6 miles to get fully warmed up and running efficently. Maybe more if the temps become below zero.

    I have a long commute in Mpls/St.Paul of about 35 miles one way. I'm still managing to stay over 30mpg, but just by a thread. I'm well short of the 36ish I was getting in August.

    Both my old 2001 Outback and now the 2012 Impreza have behaved this way.

    However last weekend's 12" of snow was fun. :blush: Maybe that is also why the mpg dropped a bit more for the last tank of gas.
  • For me with a hatch Sport Premium: 44 mpg highway summer under 60mph. 31 mpg city summer. 27 mpg combined winter, Mpls, cold, lots of idling, cold engine driving, slipping and sliding on snow/ice, winter gas formula also lowers mpg.
  • the Avalon is not "twice the car". It's 2wd.
  • Did you have the firmware updated to eliminate engine braking? I've had that done on my car and it makes a difference. Much smoother starts and downhills now.
  • I had my 2012 firmware updated to stop excessive engine braking. Made a difference. Smoother starts and much less engine braking downhills.
  • So, you bot the Outback. Why are you posting on the Impreza forumn?
  • ateixeiraateixeira Posts: 72,587
    We own a Forester and a Sienna (shares a platform with the Avalon).

    In the snow, the Toyota blows chunks. It struggles to make it up our driveway in conditions the Subaru simply laughs off.

    There's no comparison if you're in foul weather.

    The Sienna is a competent all around vehicle, but it totally falls flat in the slippery stuff, hyper-active VSA only getting in the way (thankfully an Off switch helps), so I borrow my wife's Forester.

    In fact I drove her Forester today (sleet + snow mix here in DC).
  • We have owned 6 previous Subarus before our 2012 Impreza Hatchback Base 2.0i model. We pre-ordered ours because we had been so satisfied with our Subaru products to date. (Big mistake!)

    This model was rushed to market. A number of things have become evident in the year that we have owned this car. Don't get me wrong. This can be a great car but Subaru simply did not take enough time to find its early shortcomings and fix them. (Very unlike Subaru. What were they thinking?)

    1) We can only get close to the promised 36mpg under very specific circumstances. Not too hot; not too cold; dry pavement; no wind and no hills. (Does this really sound like Maine?) 30mpg is more realistic with the base model version of the CVT. Other models should be able to squeak out a bit more.
    2) The shift logic used by the Base 2.0i CVT transmission is less than optimal. This REALLY needs to get this updated. It hurts MPG and the driving experience substantially. Those who have shifting paddles found in the more expensive models can take control of shifting and do much better than the "computer brain" controlling the CVT in the Base 2.0i. A few have mentioned getting logic updates, I think it should be a required service recall.
    3) The computed average MPG on the dash is always overstated by about 7 to 10%. It kind of makes you wonder about the math skills of their engineers.
    4) The standard tires (Yokohama Avids) are NOT suited for snow & ice in the northern tier states. They are quite good for typical wet/dry conditions. Subaru should have used another tire model for vehicles delivered to the the snow belt. I get the sense that this decision was made by an accountant and not an engineer.
    5) Subaru of America does not appear to want to help its customers out. They cannot admit they made a few mistakes and then propose how to fix them. They seem to be in denial about this model's issues. (This does not make a good customer experience!) So, my advice ... get your facts; have them on paper; know what solutions are acceptable to you and then just keep pushing. Subaru will make it right eventually.
  • ateixeiraateixeira Posts: 72,587
    Send them feedback. The new Outback had no folding mirrors but they fixed that in one year. The roof racks were too close and they fixed that too.

    They can and do listen.
  • wvwwvw Posts: 19
    It's reassuring to see you post this as this has been my experience, too. I like the car a lot, but did as well or better on MPG with my Hyundai Elantra that was supposed to get 3 MPG less than the Impreza hatchback.
  • ateixeiraateixeira Posts: 72,587
    Hyundai got in trouble over that.
  • wvwwvw Posts: 19
    That was a 2008 that got close to 2MPG more than what the sticker said.
  • jd_24jd_24 Posts: 92
    My 2012 with CVT has dropped a bit in the MPG numbers. The last two tanks have been just under 30mpg. With the colder weather (10F and colder) and increased short trips the drop was expected. Still very happy since its better than the 24ish my 2001 Outback would get in the winter.

    Lowest tanks have been 29 to 30mpg.
    Highest tanks were last summer and in the 35 to 37 range.

    15,000+ miles so far.
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