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Old 05-12-2004, 10:07 AM   #1
SCutchins
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2004 Forester XT
Cayenne Red Pearl

Default XT Fuel Mileage

On my second tank of gas I averaged 18.1 mpg, which is fairly horrible. Sure its better than the 14.4 of my truck, and I have been spending an awful lot of time in rush hour traffic lately.

Does the engine loosen up a little and get better mileage? I only have around 700 miles on it now.

Are there any mods I can do to improve mileage? Not sure about cars but I know with motorcycles an aftermarket air filter can sometimes give you a good 10% boost in mileage.
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Old 05-12-2004, 10:37 AM   #2
Caddy Daddy
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i will post up a mpg vs odometer chart later, but we as well experienced low gas mileage around break in period, but after a few hundred miles past 1000 it evened out to a nice 20-22mpg for mostly city driving
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Old 05-12-2004, 10:45 AM   #3
Peaty
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My log to date:

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Old 05-12-2004, 10:57 AM   #4
Corkfish
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There are some owners over on Edmunds claiming to get 27 mpg which I suspect is hogwash. I don't know how they are coming up with those figures because I seem to be getting 20 to 23. The price you pay for fun.
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Old 05-12-2004, 11:10 AM   #5
ElZorro
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I'm getting between 18 and 20, and that's pretty hard driving.
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Old 05-12-2004, 12:15 PM   #6
looney
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i'm at about 4K and get a consistant 19.5 to 20.5... (thats driving very spirited)
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Old 05-12-2004, 01:39 PM   #7
irmiger
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27? Downhill to work both ways maybe!

I'm now posting a consistent 17city (San Francisco hills) and 23hwy with almost 15k.
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Old 05-12-2004, 06:51 PM   #8
brett s
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Quote:
Originally posted by Corkfish
There are some owners over on Edmunds claiming to get 27 mpg which I suspect is hogwash. I don't know how they are coming up with those figures because I seem to be getting 20 to 23. The price you pay for fun.

I'm one of them - 27 mpg isn't the norm, but on perhaps 8-10 tanks of 100% highway driving at 75 mph on cruise that's what I ended up with (on 3 tanks back to back, for the people that want to say it's not getting totally filled & is giving a false reading). I've never gotten below 25 mpg on 100% highway driving, usually it's between 25-26. Again, these are pure highway usually with no stops between the fillups.

My normal commute is around 75-80% highway, I average 22-23 mpg. Two things that may help that number be higher than some see - it's a 40 mile drive one way, and my tire pressures are 36/35 front/rear. Other than the very first tank from the dealer (which got me 19 mpg) I've never gotten below 21 mpg. I've had the XT for 9 months & have 23,000 miles so far...
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Old 05-12-2004, 08:00 PM   #9
Caddy Daddy
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Quote:
Originally posted by brett s
I've had the XT for 9 months & have 23,000 miles so far...
thats a lot of driving
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Old 05-12-2004, 09:40 PM   #10
richg13
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I have my speadsheet at work. I'll see if I can post it tomorrow. I have a XT Auto w/PP that I purchased new in october.

Just over 8000 miles, now.

The best MPG I have been able to attain is 20.7. (Philly to Pittsburgh via PA turnpike) 20.1 on the way back. I averaged about 80mph

I have been averaging about 16.8 to 17 MPG.

I always check the tire pressure and have used nothing but Premium gas.

Before the first oil change I was below 16.

I do get into a decent amount of work traffic. (35 minutes to go 14 miles to work everyday. Sometimes 45 to 50 minutes)

I will be scheduling my 7500 service and wonder what I should be telling the service manager.

Any suggestions?
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Old 05-13-2004, 08:40 AM   #11
richg13
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Default Posted Mileage

I was off just a little bit on the mileage from my post above, but I still think somethings wrong. Is it the Auto trans? I do drive hard, but I'm no maniac.

Any ideas?

I also noticed that since it's getting hotter outside there is more hesitation when accelerating at highway speeds. Not sure if it's related.

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Old 05-13-2004, 08:59 AM   #12
Slimey
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richg13-

Maybe it's something about driving in Philadelphia or Philadelphia fuel.

We have pretty poor MPG on our XT. I've just assumed we're at the low end of the bell curve. The car drives just fine and there have been no issues.

My wife used the XT as a daily driver in stop & go heavy city traffic (a/c never turned off). The XT has only seen long stretchs the open highway a handful of times. We averaged about 15 MPG over the first 7500 miles. Recently, at the 7500 mile service, I changed the oil to Mobil 1 5W-30 and put in a K&N panel filter. The MPG jumped to 17 MPG with the same conditions (all city stop & go driving).

edit: I just looked at your spreadsheet again and I would guess that if we made a spreadsheet for ours, it would look the same. I say 15 MPG, but it's really 15.x. I round down MPG to the whole number for some reason...

Also, another reason I'm not concerned about the MPG is because the few times we did take it on the open road we got in the 24-25 MPG range. I know this engine is capable of the better mileage, but our driving habits just aren't allowing it to achieve it's potential.

Last edited by Slimey; 05-13-2004 at 09:06 AM.
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Old 05-13-2004, 09:38 AM   #13
lucien2
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FWIW, I usually get between 19 and 22 mpg with mostly city driving. Drove up to NYC yesterday though, and got an all time high of 25.6 mpg, 100% highway. We're going to skyline drive today, so I'll see if that figure was an anomaly or not.
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Old 05-13-2004, 10:39 AM   #14
richg13
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Quote:
Originally posted by Slimey

Also, another reason I'm not concerned about the MPG is because the few times we did take it on the open road we got in the 24-25 MPG range. I know this engine is capable of the better mileage, but our driving habits just aren't allowing it to achieve it's potential.
I assume your wife has the Automatic as well. My only concern was that on top of the subpar everyday driving MPG the Highway mileage was just as poor.

On the Pittsburgh trip I barely broke 20 and the only reason I hit 17's in the spreadsheet was due to several HW trips to the Pocono's

At this rate I don't think I'll ever hit 24.
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Old 05-13-2004, 11:19 AM   #15
bluesubie
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Quote:
Originally posted by brett s
I'm one of them ...
And I'm another. I got 25 mpg twice on a recent trip from NJ to SC. It was 100% highway driving using cruise most of the time.

27 is believable to me and I'm pretty sure I could attain it if I really tried. I get 19-21 city.

Corkfish - Like I posted on Edmunds, let me know when you're ready to make a wager. I suppose I could videotape it for you.

http://www.fueleconomy.gov/feg/info.shtml
Quote:
Some consumers may notice that their fuel economy estimates differ from EPA's estimates. This can be caused by any of several factors related to driving conditions, driver behavior, vehicle maintenance, and fuel characteristics as explained below.

It is impossible for laboratory tests to simulate all driving conditions and driver behavior: EPA fuel economy estimates are based on tests conducted by manufacturers on a limited number of pre-production prototype vehicles. EPA then verifies these tests on about 10-15 percent of each year's models. The tests, which are the same for all vehicles, are designed to simulate city and highway driving conditions. However, these tests cannot simulate the conditions under which each vehicle is driven or each person's driving style.
-Dennis
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Old 05-13-2004, 03:17 PM   #16
Ghostrider600
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Still getting in the 20mpg range combined driving.
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Old 05-13-2004, 04:48 PM   #17
Slimey
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Quote:
Originally posted by richg13
I assume your wife has the Automatic as well.
Yes. 4EAT.

Some other thoughts on fuel economy (I posted this on subaruforester.com already):

We still have our roof rack cross bars on. My wife won't let me take them off although we have yet to use them. She likes the look (?). I'm wondering if they are costing us some minor amount of MPG.

I was trying to see if the XT has particulars to fuel, but no go. Our mileage has been the same regardless of fuel brand from the local stations that we go to (Amoco/BP, Sunoco, Mobil/Exxon; all 93 octane).

We have the stock tires at about 31 psi front & 30 psi rear. She likes the ride a little more mushy then I would.
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Old 05-14-2004, 05:47 PM   #18
geoffrey raiser
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Hey,

For what it's worth I've been getting 23-24 mpg like clockwork. I have a 80 mile round trip daily commute, mostly highway, mostly at 65-70 mph but I play whenever I can. It's not unusual to hit 90 when I "have" to pass other cars on the backroads.

Running 34 psi front, 33 rear. Roofracks are still installed, along with a front brushguard, hood deflector and rear window deflector.

I thought my mileage was a bit low but it looks like I'm doing OK!

Geoffrey
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Old 05-17-2004, 11:35 AM   #19
SubaruCO
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Just finished a round trip to Denver and back. Going to Denver I averaged 24.2 mpg and coming back it was a dismal 20.3.

NOTE: The drive each way includes two passes: 10,600 ft. Vail Pass and 11,060 ft. Eisenhower. On the way back home I fought consistent 30 mph headwinds.
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Old 05-17-2004, 02:46 PM   #20
Glass Man
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First road trip with the XT this weekend. Drove 300 miles down to Oregon w/ tandem bike on top and got over 25 mpg!
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Old 05-18-2004, 08:36 AM   #21
Corkfish
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Amazing how something with aerodynamics of a brick, weighs 3300 pounds, has a 4:44 axle ratio, and 240 horsepower seems to be getting better gas mileage than my 2500 pound Sentra.
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