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Old 01-19-2013, 11:48 PM   #1 (permalink)
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Default New OBXT owner very poor mpg

I've had the outback 2005 XT for the past 2 weeks. I am loving the car, the power and everything. Is very fun to drive actually the funnest car I've ever driven. Last tank fill up I got 13 MPG Driving purely in City. (Horrible) My V8 Grand Cherokee does better than that. I bought the car thinking That I Would get better MPG than my Cherokee so that's unfortunate. I am thinking that the car probably needs a tuneup. The car was owned by 1 person before, they were an old couple and according to them they did all the maintenance on the car when it had to be done. I checked the car-fax and I saw it myself. The turbo hasn't been replaced and it's got 97000 on it. I still haven't checked the Banjo bolt. I have noticed some hesitation on acceleration sometimes on the hwy and a little rough idle when stopped on traffic lights. We just came back from a 120 mile little trip and the MPG computer says I got an average of 22 MPG so far. The trip was very variable in speeds a elevation so I think it did pretty good. What should I do to get better MPG in the city? Thanks in advance
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Old 01-20-2013, 01:45 AM   #2 (permalink)
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It's rated 17 city.

If you're enjoying the turbo, I could see 13mpg.

Mine seems to get around 20mpg combined, but I've been consciously babying it.
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Old 01-20-2013, 02:18 AM   #3 (permalink)
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You'd have to be costantly thrashing it to get 13. I was at 15.5 for a while, but I was driving like an ass the whole time.
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Old 01-20-2013, 09:25 AM   #4 (permalink)
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There are some things to remember with a 2.5XT.. in my case I have a 2005 with the 5 speed automatic.. I live in a area where the roads are either flat or change quickly to hilly or mountainous..

One: Wintertime is going to get you less fuel mileage due to blend..

Two: If you are just running around town quick trips don't expect much better..

Three: Warming up or just keeping it running while sitting will get you the worst..

Four: The turbo needs to be in boost..!! That means trying to maintain 2,300 rpm or better for the better fuel mileage.. Trips on cruise control at 55-65 with the rpm's running at or above 2,300 and you get an engine that is running leaner..

My XT gets 13-14 wintertime around town and in the hills.. However I get a big increase once I get on the interstate and set cruise control.. Even in the winter I can manage 25 on a trip.. Summertime I've seen better..

Also note that MT's over auto's don't always get better fuel mileage. You may think your managing the engine, but that might not be the case.. I found keeping the car in the boost range works best..

Five.. Outbacks tend to fight the wind.. Loads can affect mileage and tire pressure..

All things to think about..

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Old 01-20-2013, 10:08 AM   #5 (permalink)
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Seems perfectly normal to me. Since my last oil change (2800 miles), I am getting 22.2 MPG in mixed city and highway driving. I keep it in I mode most of the time except for when I decide to grin a bit.
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Old 01-20-2013, 10:19 AM   #6 (permalink)
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City driving? check.

Winter? check.

car is an XT? check.

Driver realizes it is an XT and is smiling? check!

Congratulations! you have completed the checklist for burning the most gas in the least time. Honestly it sounds like your car is about normal. A set of plugs & an air filter might help bring back a little MPG but don't expect much. These cars need a long haul on an open road before they show good MPG, and by definition you'll never get that in city traffic.
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Old 01-20-2013, 10:58 AM   #7 (permalink)
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Have you checked your actual mileage or are you just going by the dash readout?
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Old 01-20-2013, 12:22 PM   #8 (permalink)
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I don't drive like a mad man. I actually drive like my grandfather when he was 89 years old. Someone at work owns an impreza and told me that it would be best if I don't get it to boost at all. So here I am driving in the middle of the street below 2500rpms and people get really upset. I mean I would get upset! if I was driving behind a station wagon going 30 on a 45 speeding up ridiculously slow. Before i get to the speed limit I have to stop to a traffic light from home to work and vice-verse. So I guess I would have to go on the Hwy to get the most out of my fuel. Is a little longer but I guess I would get better MPG if I do it that way. What about the hesitation do you have any thoughts on that. Rough Idle starts when I stop on a light and acts like is going to turn off but it doesn't. Is not as bad as it sounds but I could definitely feel it. What do you recommend? I am very mechanically inclined but this is my first time going Subaru coming from jeep. For some reason I've always wanted a Subaru.
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Old 01-20-2013, 12:26 PM   #9 (permalink)
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Quote:
Originally Posted by Fefrank View Post
What about the hesitation do you have any thoughts on that. Rough Idle starts when I stop on a light and acts like is going to turn off but it doesn't. Is not as bad as it sounds but I could definitely feel it. What do you recommend?
If your referring to the Turbo Lag not much..

As far as the stumbling it might need the throttle body cleaned.. That's a common problem with the XT's.. Just had mine done recently..

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Old 01-20-2013, 01:08 PM   #10 (permalink)
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Quote:
Someone at work owns an impreza and told me that it would be best if I don't get it to boost at all.
Someone at work misses the point.
13 is a tad low. As Seabass points out, it usually takes some effort to get it down that far. In deep snow and mud I generally get 14 - again "with effort"
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