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Subaru Outback 2008 MPG

nukalanukala Posts: 2
edited March 29 in Subaru
I recently purchased a Subaru Outback 2.5i Limited Automatic transmission model. I do mostly city driving in upper Michigan area. I am getting 14 to 15 MPG with very careful driving in city. The dealer says I should go on a long drive and this will improve the mileage otherwise does not offer any solution. I doubt that a long drive on a highway will cure this problem after all i am not going to go daily on highway just to get better MPG. Any suggestions?
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Comments

  • cptpltcptplt Posts: 1,075
    subaru boxer engines tend to take some time to "loosen " up, 10K plus would not be unusual but if you really are in city traffic, you may only improve a little. I have the same car you do, getting 24mpg in Chicago suburbs, with my previous 98 2.5 DOHC Legacy I got maybe 23 in the same driving and if I were crawling around in downtown Chicago I would get high teens only.
  • I have the same kind of car and live in cold Madison,Wi, I barely get 14 mpg. Sometimes, I can only drive less than 200 miles with a full tank. The daily drive is short(less than 3 miles one way), local drive, I have checked tire pressure is OK. I did try to take it to a long highway drive of about 140 miles, the computer gave me back 24.5 mpg on that one. I guess the short drive in really cold places like Michigan and Wisconsin plays a big role of the bad milage.
  • paisanpaisan Posts: 21,181
    Yup, winter blend fuel also hurts it.

    -mike
    Motorsports and Modifications Host
  • My wife's had the same model with LLBean equipment since last August. She's averaging about 24+ with combined highway/city. I recently bought an '08 Legacy Limited and I'm at about 21.6 combined. I've only had mine for about 1,000 miles. The long drive will make a difference. I took a trip up to Connecticut to see friends and I averaged 25.8 in the Legacy for that stretch.
  • paisanpaisan Posts: 21,181
    Oh yeah subies also jump up in milage after 10k miles.

    -mike
    Motorsports and Modifications Host
  • ateixeiraateixeira Posts: 72,587
    True, my Forester didn't hit its peak efficiency until 15k miles.
  • nornetnornet Posts: 24
    In the summer I can get over 30 MPG (hwy only). This past week with temp about 0F,
    winter tires, very short city trips and winter gas, the mileage is as low as 17. Of all the factors, it's the cold engine that makes for the worst mileage. With winter gas and snow tires, I still get about 25 on the highway.
  • The computer read out says I'm getting 27.9 mpg (down from my 05' which was 28.2)... *The computer is off. When I calculate the MPG it's about 27.4. The computer read out adds a little. I have less than 1000k on the car. This is highway/city combined keeping it under 60 mph and have not had the AC on since its winter. I dont expect that to change much. Not sure why some of you get way less unless you have a lead foot. BTW I had a 05' H6.30 Sedan. When it was new best MPG was 24.6 after 25k that dropped to 22.4.... I don't think milliage gives you better MPG in fact you will get less as you drive more, This is my 5th Subaru. Anyway good luck with your MPG.
  • nornetnornet Posts: 24
    I for one would be interested to see how your mileage progresses. I was beginning to think I was the only one that experienced poorer mileage the older the car got.
    Did your other cars give you worse mileage with time?
  • xwesxxwesx Fairbanks, AlaskaPosts: 8,279
    Reduced mileage as the car ages generally has to do with the vacuum and emissions systems working at lower efficiencies due to carbon buildup and crud. If you keep those systems in good order, mileage should stay very stable over the life of the car taking into consideration periodic variations for season, tires, wind drag, and other variables.
  • ateixeiraateixeira Posts: 72,587
    My Forester improved with age. I didn't hit peak efficiency until 15k miles. It remained good until the day I sold it.
  • xwesxxwesx Fairbanks, AlaskaPosts: 8,279
    The average for my 2008 2.5i over 7500 miles was right at 21 mpg, though I would have to pull up my spreadsheet to know for sure. The best tanks were mid-26 hauling 4 passengers and with no cargo on the roof. Speeds were around 80. When the car was loaded (check my carspace page to know what I mean by that), the economy was right at 22, which is understandable considering the wind drag created by the roof cargo.

    My worst tank was 16.9 - the last tank I had before I sold it. I attribute that primarily to its being in the shop for 5 days with frequent idling and short test trips followed immediately by -50 temperatures for the remainder of the tank.

    Winter versus summer mileage here in Fairbanks shows huge variations - from 27 in the summer down to an average of around 19-20 in the winter for my Subarus. A friend's Toyota Prius gives her about 35 in the winter versus 50 (or more) in the summer. It takes more energy to get the cold parts turning....
  • xwesxxwesx Fairbanks, AlaskaPosts: 8,279
    Yes, I should have stated that once it hits peak efficiency (around 10-15K miles), it should remain stable. :D
  • julecatjulecat Posts: 2
    I just bought a 2008 Outback 2.5i and I couldn't believe that I am also getting 14-16 with careful city driving also. The window sticker on my new 2008 said normal range is 20city and 26 highway. I thought with the 170 hp I would get great mileage. My 2002 outback LLBean with 243hp that I just traded in for the 2008 2.5i got better mileage. Does this make sense? I am disappointed.
  • paisanpaisan Posts: 21,181
    Your milage won't increase until you hit about 10k miles. During break-in your milage will be lower.

    -mike
  • jerm32jerm32 Posts: 1
    Thought I would share. Just got back from a trip, Maryland - South Carolina. Avg down was 29.7 with some stop and go traffic. Way back was 31.5. Avg commuting is 25 to 26 half and half city/highway. Was excited on way back to go almost 500 miles on a tank. 7500 on OD before start of trip.
  • nukalanukala Posts: 2
    I am noticing a slight improvement in the MPG at 16.5 but this is still woefully low. I beleive the manufacturer should be more honest and give a more real world MPG . I basically chose this vehicle over a toyota highlander or honda pilot as this had better MPG advertised. There is no doubt that in snow this is a great vehicle but i feel the interior is cramped and there is no space to store things. These issues i could have overlooked but when added to a low milaege, I have to agree with you it is really disappointing. Hopefully thing will improve after 10K.
  • paisanpaisan Posts: 21,181
    After reading this thread I did a little experiement on my last tank of gas.

    I drove it in a more sane manner than I normally drive (being a race car driver I tend to be a bit hard on the pedals) and was able to get 25mpg in mixed city/highway with my 05 Legacy GT Turbo w/5MT wagon. I am also running 235 width tires v. 215s which are stock and these are also heavy heavy tires and rims. With stockers im sure I'd get at least 2mpg higher.

    -mike
  • ateixeiraateixeira Posts: 72,587
    Look no further than the post prior to yours. YMMV, as they say. 16.5 to 30+.
  • cptpltcptplt Posts: 1,075
    my 2.5i ltd gets 25mpg (calculated, it displays 26) on mixed driving, if I go into downtown Chicago and crawl in the traffic its more like 20. haven't really taken out on a long distance freeway drive yet but for the 41 mile one way drive into the Loop on the tollway and back if there is no traffic I can get even higher than 25.
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