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Subaru Legacy/Outback: MPG-Real World Numbers

98 messages,  Last post on Jul 29, 2009 at 7:46 AM

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What is this discussion about? Subaru Outback, Fuel Efficiency (MPG), Sedan, Wagon

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#79 of 98 Re: Mileage [jccinoh] by kidali Feb 05, 2009 (10:45 am)
Replying to: jccinoh (Feb 05, 2009 8:42 am) Would still like to ask any and all 97 Outback people to track and report on their mileage. I just bought mine used, and I'm still hovering around 13.5L/100km (17.5 mpg(US), 20.9 mpg(IMP) ). I understand it's a HEAVY car for a 4cyl. engine, and 12 years old, AND awd, but from the couple reports from others I've seen, my mileage seems poor. I've used fuel injector cleaners and have used gold (Shell 91 octane) gas to see if things improved, and they have, as I was near 14L/100k before (16.8 mpg US), but still not good in my estimation. I'm delaying looking at the O2 sensor or PCV valve cause I'm not sure what those repairs would cost.   (Oh. And I would estimate this this is 70% highway and 30% city useage <rarely travelling over 105kph {65mph} ). Replies to this message: xwesx (Feb 05, 2009 3:26 pm) kidali (Feb 23, 2009 8:43 am) xwesx (Feb 23, 2009 11:54 am)
#80 of 98 Re: Mileage [kidali] by xwesx Feb 05, 2009 (3:26 pm)
Replying to: kidali (Feb 05, 2009 10:45 am) PCV valve replacement is cheap and easy. The part might approach $8, and it takes about 2 minutes to replace. I suspect that your low mileage is primarily related to aging sensors and poor vacuum flow. Replies to this message: kidali (Feb 23, 2009 8:43 am) xwesx (Feb 23, 2009 11:54 am)
#81 of 98 2009 OB 3.0 by rfrf Feb 22, 2009 (8:19 pm)
Considering 09 OB 3.0 - anyone with mpg estimates and thoughts on the power? Thanks. Replies to this message: robsis (Feb 23, 2009 5:50 am) rfrf (Feb 24, 2009 7:04 am) samiam_68 (Feb 23, 2009 10:10 am)
#82 of 98 Re: 2009 OB 3.0 [rfrf] by robsis Feb 23, 2009 (5:50 am)
Replying to: rfrf (Feb 22, 2009 8:19 pm) Power is excellent...I liked the 3.0 power delivery much better than the turbo....it is smoother and quieter. As to mileage, I have friends getting mid to high teens around town and mid 20's on the hwy. I also like the fact that the '09 says that premium is optional; however, if it is anything like another vehicle I own with premium optional, you will see a 5-10% drop in mileage when you use the regular grade....so check into this if you don't like spending the extra money on the premium gas. Replies to this message: rfrf (Feb 24, 2009 7:04 am)
#83 of 98 Re: Mileage [xwesx] by kidali Feb 23, 2009 (8:43 am)
Replying to: xwesx (Feb 05, 2009 3:26 pm) Thanks xwesx. you seem to know your stuff.   You recommend a Subaru dealer, or should any decent mechanic be able to identify and replace whatever is needed?   I'll be taking it in once the weather starts warming up a bit (and my wallet is a little more full Replies to this message: xwesx (Feb 23, 2009 11:54 am)
#84 of 98 Re: 2009 OB 3.0 [rfrf] by samiam_68 Feb 23, 2009 (10:10 am)
Replying to: rfrf (Feb 22, 2009 8:19 pm) I test drove a 09 3.0 OB two times, two different cars. First drive was in 40 degree temperature, the second in the 20's. Both times I thought the 3.0 engine was lethargic. It simply runs out of breath above 65 MPH. Around town it's just adequeate.   According to the trip meter, which I reset after a short warm-up, the mileage averaged around 17.5-18 MPG. Both test drives were around 10 miles long, with the Normal (Sport) setting on the SI-Drive. Both test drives were about half highway and half local traffic.   I personally would not recommend the 3.0.
#85 of 98 Re: Mileage [kidali] by xwesx Feb 23, 2009 (11:54 am)
Replying to: kidali (Feb 23, 2009 8:43 am) For this type of work, any good mechanic should be able to assist. If you can find a reliable independent Subaru mechanic, your car will be quite thankful.   When considering how much money to throw at this problem, take a look at your driving, estimated fuel economy if running well, and mileage, then compare that to what you currently pay, and consider the difference between the two. Also consider that if the car is running more efficient, the engine will likely last you longer.
#86 of 98 Re: 2009 OB 3.0 [robsis] by rfrf Feb 24, 2009 (7:04 am)
Replying to: robsis (Feb 23, 2009 5:50 am) Am in the middle of making purchase decision and you put your finger on one of the remaining issues for me. Have you tried SI drive Intelligent mode?
#87 of 98 by robsis Feb 28, 2009 (6:32 pm)
Yes and it does fine...not sure about the reply as to the poor aspiration of the 3.0 as I have not experienced that at all. I have test driven both the 08 and 09 3.0 at 5200 ft in cold weather and they wanted to both run strong well into the 90's, when I stopped due to the speed limit on the test road....! the sport mode seemed to bring it on stronger; however, I did not notice a huge difference when I put it in sport-sharp. The Intelligent mode seems the best overall for just plain everyday, which is why I believe that Subie put it there in the first place. The other modes are fun for short periods of time; however, you can just tell that your sucking more petrol.....   HTH   Robert Replies to this message: rfrf (Mar 12, 2009 7:32 am)
#88 of 98 Re: [robsis] by rfrf Mar 12, 2009 (7:32 am)
Replying to: robsis (Feb 28, 2009 6:32 pm) Have read through the posts re mpg estimates fro the 3.0 - not great, at lst compared to the Sub reported EPA of 19/26. did u notice if the Intelligent mode helped w/ mpg? I bet the 3.0 rides great.

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