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Subaru Forester MPG-Real World Numbers

174 messages,  Last post on May 13, 2009 at 4:45 PM

You are in the Subaru Forester Forum. Your Host is kcram

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


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#5 of 174
Re: Mega topics huh? [p0926] by tidester HOST
Jun 13, 2006 (7:35 pm)
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Replying to: p0926 (Jun 13, 2006 7:22 pm)

Exactly!
 
tidester, host
#6 of 174
OK, I'll bite... by ateixeira
Jun 20, 2006 (9:45 am)
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25.1 mpg lifetime average.
 
Peak of 30.4 mpg on a trip.
 
Low of 17.3 mpg while towing a 1500 lb trailer the entire time.
 
-juice
#7 of 174
'nother nibble by growler5
Jun 21, 2006 (8:58 am)
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'05 FXS, manual 5 speed, 31k miles in 19 months. Usually 380-410 miles between fill-ups, wait for low-fuel light to go on.
 
October thru April - 28 mpg
May thru September - 30+ mpg
(difference due to seasonal temp variation (eastern Pennsylvania) and winter gas additive changeover at refineries)
 
Best mpg - 32.3 on 440 miles (same tank of gas) mostly long distance. Last month.
Worst - first tank, at 24.5
#8 of 174
Re: 'nother nibble [growler5] by ateixeira
Jun 21, 2006 (10:03 am)
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Replying to: growler5 (Jun 21, 2006 8:58 am)

Sweet, the EPA rated yours at 23/30 and it looks like those numbers are definitely possible.
 
-juice
#9 of 174
'04 F-XT 5sp MT by subearu
Jun 21, 2006 (1:15 pm)
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Averaging about 20 miles per day or about 7,300 miles per year. Mostly short trips, but I make my commute a bit longer to allow the engine to warm fully. Steady diet of 92 octane from Super America. Reformulated fuels and winter oxygenated blends (10% ethanol year-round). Shifts almost always between 3-4k rpm and not afraid to let the rpm's go higher if/when necessary.
 
best: 26 mpg (all highway at 75 mph)
worst: 18 mpg (winter)
average: 21 mpg
 
Average mpg up until this past winter was 1 mpg better than my Outback. Partial thanks to winter fuel, no doubt.
 
-Brian
#10 of 174
'00 Outback wagon 4EAT by subearu
Jun 21, 2006 (1:19 pm)
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(my first Subie and was prior to my '04 F-XT)
 
Averaged 26 miles per day, or about 9,500 miles per year. 87 octane from Super America. Reformulated fuels and winter blends both with 10% ethanol.
 
best: 28 mpg (highway trip)
worst: 17 mpg (again, winter)
average: 22 mpg
 
-Brian
#11 of 174
04 -Forester XS automatic by cinemod1
Jun 28, 2006 (6:31 pm)
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Never did better than 21mpg, whether I go 65 or continuous 85mph.
- 80 miles per day 95% highway.
- - Use 87 octane, with that lousy ethanol.
- - Tried all brands of gas - no difference.
 
Tried Octane booster to a tank of gas, new special, copper plugs - drove 65-70mph - 20 mpg.
  
Winter milage is even worse.
My '92 Legacy LS Wagon got 25 and it's >= 400 lbs heavier.
( It's still on the road BTW )
 
How are you achieving those type of numbers?
Dom
#12 of 174
Re: 04 -Forester XS automatic [cinemod1] by subearu
Jun 28, 2006 (7:41 pm)
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Replying to: cinemod1 (Jun 28, 2006 6:31 pm)

Both of my Subies were not driven lightly, I would allow it to rev into the 3-4k rpm range normally and even higher when necessary. Doesn't require a lead foot to do that either. I do run Mobil-1 in my cars though, which may help 1mpg or so.
 
-Brian
#13 of 174
24 MPG Lifetime average over 100K by gouldn
Jul 10, 2006 (3:39 pm)
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I've had my 01 Forester (S+ Automatic) for 102K now, and am getting 24 MPG.
 
I did notice that mileage improve markedly after ~7500 miles or so.
#14 of 174
Re: 04 -Forester XS automatic [cinemod1] by growler5
Jul 11, 2006 (6:49 am)
Reply

Replying to: cinemod1 (Jun 28, 2006 6:31 pm)

How are you achieving those type of numbers?
 
Not by driving 85mph. Speed kills gas mileage. The sweet spot seems to be about 45-55 MPH for most cars.
 
The FXS isn't going to win any prizes for minimum air resistance either.
 
It's too bad the EPA doesn't do an experiment with the MPG test by doing the standard test for highway speed, and then repeating the test at a higher speed, say 80-85 mpg. It would be interesting indeed to see the MPG difference.

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