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Old 12-11-2012, 06:10 PM   #2601
gravitylover
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I was talking to a guy when I was at the dealer today while I was getting my block heater installed and he said he averages right around 40 mpg on his 98 mile roundtrip commute. When he picked up his car and got in the dash showed 40.7! He also said his best was on a 270 mile hwy trip he touched on 50 for a while and ended at 48 and change.

Not bad...
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Old 12-12-2012, 04:36 PM   #2602
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12 Limited HB here...just turned a year old this week...coming up on 27K....100 mile round trip commute..average spd 50 MPH, varies between 35-75 depending on traffic and road conditions. Found a good break in to be around the 10K mark....noteable increase in gas mileage after the 7.5K oil change and again at 15K...overall average between 31-32 MPG.....less in the cold more in the summer..cold start ups and short drives under 25 miles in the winter kill MPGs..always use cruise control when I can to optimize mileage....so far very happy with the little AWD....
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Old 12-14-2012, 03:10 PM   #2603
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Quote:
Originally Posted by PAO56 View Post
12 Limited HB here...just turned a year old this week...coming up on 27K....100 mile round trip commute..average spd 50 MPH, varies between 35-75 depending on traffic and road conditions. Found a good break in to be around the 10K mark....noteable increase in gas mileage after the 7.5K oil change and again at 15K...overall average between 31-32 MPG.....less in the cold more in the summer..cold start ups and short drives under 25 miles in the winter kill MPGs..always use cruise control when I can to optimize mileage....so far very happy with the little AWD....
Thanks for the info. I have about 450 miles on my '13 Sport Limited and so far am hovering around 21.3 mpgs...not good. My commute is also about 5-6 miles each way with 1-2 of that being freeway.

I plan on changing out the oil at 1,000 miles and I read somewhere else that MPG's improved significantly after the 1st oil change. I wonder if the factory uses an oil that perhaps isn't as good with the MPG's but is better for engine break in?

Hopefully my MPG's can improve with time, I wasn't expecting to see such low numbers with this car.
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Old 12-14-2012, 03:21 PM   #2604
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Quote:
Originally Posted by PuyallupCoug View Post
Thanks for the info. I have about 450 miles on my '13 Sport Limited and so far am hovering around 21.3 mpgs...not good. My commute is also about 5-6 miles each way with 1-2 of that being freeway.

I plan on changing out the oil at 1,000 miles and I read somewhere else that MPG's improved significantly after the 1st oil change. I wonder if the factory uses an oil that perhaps isn't as good with the MPG's but is better for engine break in?

Hopefully my MPG's can improve with time, I wasn't expecting to see such low numbers with this car.
your commute it too short to see good numbers, 1/2 of your commute or better is used just to warm up the engine.

for example, my commute is 41 miles 1 way. when it is 15F outside and i had it plugged in it takes 1-1.5 miles for the blue light to turn off, then an additional 15 miles to get everything else up to temp. my MPG will improve 4-5mpg from start to after everything is fully warmed

someone posted it i think in this thread but every time you start from cold your car will burn .25 gallons to warm the engine, so you are burning 2.5 gallons/week just for that purpose
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Old 12-14-2012, 04:08 PM   #2605
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Originally Posted by flyboy1100 View Post
your commute it too short to see good numbers, 1/2 of your commute or better is used just to warm up the engine.

for example, my commute is 41 miles 1 way. when it is 15F outside and i had it plugged in it takes 1-1.5 miles for the blue light to turn off, then an additional 15 miles to get everything else up to temp. my MPG will improve 4-5mpg from start to after everything is fully warmed

someone posted it i think in this thread but every time you start from cold your car will burn .25 gallons to warm the engine, so you are burning 2.5 gallons/week just for that purpose
Gotchya, thanks for the insight. I'm going on a 100 mile trip this weekend with a fresh tank of gas so we shall see about the MPG. I'm just hoping it's my commute and not something wrong with my car.
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Old 12-14-2012, 04:13 PM   #2606
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Originally Posted by PuyallupCoug View Post
Gotchya, thanks for the insight. I'm going on a 100 mile trip this weekend with a fresh tank of gas so we shall see about the MPG. I'm just hoping it's my commute and not something wrong with my car.
before you start that trip reset the trip meter after everything is warm am I bet you see good numbers

warmup is a killer, i think it is way overkill too
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Old 12-14-2012, 04:25 PM   #2607
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PuyallupCoug: I live in the same general climate zone as you do, and my commute is just over twice the distance as yours (about 25 km each way, or just over 15 miles), without the benefit of highway travel (ie. it's basically all city stop-and-go traffic). That said, I have taken it on the freeway here on the weekends for my own enjoyment, so I would say I'm about 90% city driving, 10% freeway driving.

If it matters any, I'm in a CVT (you didn't mention what type of transmission yours had, so I'll assume 5MT). No maintenance has been done yet (will probably do my first one at 5000 miles / 8000 km).

My average fuel consumption figures are just short of 10 litres per 100 km. This translates to approximately 23-24 MPG. This figure is hand-calculated from my fuel-ups, not the figure that the dummy display wants me to believe (25 MPG). I'm now at about 4000 km / 2500 miles total on the odometer.

I agree with flyboy that your short commute is probably what's killing your fuel consumption. I can guarantee that mine (with all the idle time stuck in traffic) is definitely due to that.

Keep us posted on how your car does on your trip.
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Old 12-14-2012, 04:54 PM   #2608
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Originally Posted by lymphomaniac View Post
PuyallupCoug: I live in the same general climate zone as you do, and my commute is just over twice the distance as yours (about 25 km each way, or just over 15 miles), without the benefit of highway travel (ie. it's basically all city stop-and-go traffic). That said, I have taken it on the freeway here on the weekends for my own enjoyment, so I would say I'm about 90% city driving, 10% freeway driving.

If it matters any, I'm in a CVT (you didn't mention what type of transmission yours had, so I'll assume 5MT). No maintenance has been done yet (will probably do my first one at 5000 miles / 8000 km).

My average fuel consumption figures are just short of 10 litres per 100 km. This translates to approximately 23-24 MPG. This figure is hand-calculated from my fuel-ups, not the figure that the dummy display wants me to believe (25 MPG). I'm now at about 4000 km / 2500 miles total on the odometer.

I agree with flyboy that your short commute is probably what's killing your fuel consumption. I can guarantee that mine (with all the idle time stuck in traffic) is definitely due to that.

Keep us posted on how your car does on your trip.
Thanks for your story. I just updated my profile to include my car type

I have a Sport Limited Hatch with CVT.

I'll definitely post numbers post trip.
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Old 12-14-2012, 06:14 PM   #2609
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It's been stated but came from actual drivers experience with the new impreza -- if your commute is short and you are always starting off with a cold engine you will be seeing very low MPG's (within the range they used to print on the Window Sticker, the redesigned window sticker does not show the range anymore).

Mine came with this sticker (the previous version of the EPA sticker):



This is a 5 speed Sport, so the lowest of the MPG's among all of the new Impreza's, your City range will only be slightly higher.

Keep in mind the EPA test for CITY mileage starts with a cold engine but is a 30 minute dyno run. So the engine is warmed up during most of their testing. The cold starts are a MPG killer, and if that is most of your driving it also counts as Severe Service in terms of changing your oil. Short distances give the oil no time to come up to temperature and burn off condensation.

But when you do get out of town, you will see your MPG's climb, unless you drive out of town exceeding 70mph, which also takes you out of the range for which you will get good mileage.
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Old 12-14-2012, 07:35 PM   #2610
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Today I drove slowly - averaged between 65 and 70 on my 110 mile highway commute - definitely easy highway driving. I got 26 mpg.

Clarification for the productivity challenged: Unfortunately, I was making much less than minimum wage for the extra time I was driving...

Last edited by stevehnm; 12-15-2012 at 12:48 AM.
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Old 12-14-2012, 10:32 PM   #2611
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Learn to drive
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Old 12-16-2012, 02:40 AM   #2612
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CVT 1247 miles... 3/4 of miles were going greater than 60 mph and less than say 75 and i'm getting a 26.4 mpg average in the tank... with two big trips that made up 600 miles worth with only one stop on each trip.... Honestly im pretty sure i could have gotten a wrx and babied it and got that going 70 on the interstate... Also the Ducting for the heat sounds like a jet air craft and doesn't blow worth a crap on my feet. My headlights have moisture in them, and half of my A$$ warmer on the drivers side doesn't work...

how to see possitive in a negative situation.. My old 96 dodge truck got 13 mpg....

But then again... I have NEVER once had a problem with it..
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Old 12-16-2012, 03:03 PM   #2613
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I'm a newbie (be kind). I live in British Columbia and am strongly considering a '12 Impreza sport wagon. There's a Subaru dealership that's advertising 51 MPG HWY. Would you run away (as from reading this thread this just doesn't seem possible unless I draft behind a snowplow) or call him on it and try to get a better deal, letting him know his claims are outrageous? It's my first dealership purchase.
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Old 12-16-2012, 03:25 PM   #2614
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I don't see how that dealership can claim better fuel economy than the EPA.
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Old 12-16-2012, 04:36 PM   #2615
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Doing some basic math here. The dealership is technically accurate. They are showing the MPG UK figures based on UK gallon.
5.5l/100km is 42us mpg and 51uk mpg.
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Old 12-16-2012, 04:49 PM   #2616
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Even 42 MPG is hopelessly optimistic for our Imprezas.

I'm not complaining about the fuel economy I get with my Impreza (averaging between 31 and 32 MPG). But to plant the idea that a buyer could consistently get and maintain 42 MPG is just setting up a customer for disappointment. That's hybrid or diesel car fuel economy. Can't be done with a gasser AWD car. Maybe in 5 -10 years, but not today.
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Old 12-16-2012, 05:07 PM   #2617
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Originally Posted by sgoldste01 View Post
Even 42 MPG is hopelessly optimistic for our Imprezas.

I'm not complaining about the fuel economy I get with my Impreza (averaging between 31 and 32 MPG). But to plant the idea that a buyer could consistently get and maintain 42 MPG is just setting up a customer for disappointment. That's hybrid or diesel car fuel economy. Can't be done with a gasser AWD car. Maybe in 5 -10 years, but not today.
Um I get 42 hwy. So its not optimistic. It's possible. My last two all hwy drives put up 5.5l/100km which is what the car is rated for and is 42mpg.
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Old 12-16-2012, 05:10 PM   #2618
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just under 15,000 miles on the car, 2012 Impreza Sport Limited, 72 mile daily commute, 80% Highway, Cruise set @ 68.

I'm yet to break 30mpg on a full tank.

All these people claiming 42 MPG are full of it, or think the Instantaneous MPG meter is what they're actually getting.
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Old 12-16-2012, 05:35 PM   #2619
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42+ MPG is possible at around 55 MPH on the 5MT with increased tire pressure.

Drag increases exponentially with speed.

What makes you think 68 MPH is best for economy?
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Old 12-16-2012, 05:42 PM   #2620
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42+ MPG is possible at around 55 MPH on the 5MT with increased tire pressure.

Drag increases exponentially with speed.

What makes you think 68 MPH is best for economy?
Nothing, and nothing I said implied that.

It's a perfectly reasonable speed in CT traffic. I would go over 75 in my 04 TS and get the same MPG per tank.

Subaru is selling a bill of goods on the 12+ Impreza.

Just because it can get 36mpg highway, at 42 MPH, going downhill with a tailwind, doesn't mean they should keep saying it gets great MPG.
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Old 12-16-2012, 06:05 PM   #2621
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"Reasonable" has nothing to do with physics. If you want better economy, consider slowing down.

Also, Subaru doesn't make MPG claims, the EPA does.

People have posted MPG displays in the 40s along with their trip odometers.
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Old 12-16-2012, 06:21 PM   #2622
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Quote:
Originally Posted by Commander Keen View Post
"Reasonable" has nothing to do with physics. If you want better economy, consider slowing down.

Also, Subaru doesn't make MPG claims, the EPA does.

People have posted MPG displays in the 40s along with their trip odometers.
Actually the EPA did not make this mpg claim, Subaru did, allegedly following the EPA procedure. If the cvt is electronically tunable as is hypothesized here, it can be tuned to maximize mpg specifically during that test without regard to real world performance.

I think the 5mt may achieve better real world mpg results according to comments on this thread.

I have achieved better than 42 mpg myself, but at a speed so slow it would be dangerous on the freeway. I can reset the gauge at the top of a hill and take a picture with much better than 42 mpg - those pictures are worthless.

It seems to be a scam on the part of someone at Subaru, and now Subaru is in a jam because real world mpg according to Consumer Reports etc. shows the cvt's claim by Subaru is wildly exaggerated.
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Old 12-16-2012, 07:14 PM   #2623
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My mistake, I see the EPA only tests some cars directly. Many of those pictures taken include odometer readings that would rule out the kind of cheating you described.
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Old 12-16-2012, 07:37 PM   #2624
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Subaru isn't cheating on the EPA tests. Subaru tests the car according to the criteria provided by the EPA, and prints those numbers on the window sticker.

The EPA tests a very specific type of performance, and one thing they are not testing for is only exceeding 65mph+ on the highway.

It's fine if you want to exceed those speeds, but we have already figured out that it takes you out of the realm of the Window Sticker numbers. This is whether you have a CVT or a 5 Speed, by the way.

Some drivers can achieve the EPA numbers with the new Impreza, and others cannot.

Some of those who cannot seem to refuse to accept that the way they are driving the car (and the type of driving -- high speed on the highway =low MPG -- short City trips with a cold engine = low MPG) is the reason they are getting low MPG's.

It's been beaten to death in the warranty thread, where the same people are yacking endlessly about how they are going to pursue a fraud complaint with the EPA, or file a warranty complaint with SOA.

So far no one has done a thing but whine like a little baby. C'mon, file a complaint already...

And stop name dropping Consumer Reports, have you failed to realize that they named it a top pick in its class and also praised its excellent MPG's for a AWD vehicle. Your choice of Consumer Reports to prove your point indicates you are misunderstanding what they are writing.
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Old 12-16-2012, 08:23 PM   #2625
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Originally Posted by BrysImpreza View Post
just under 15,000 miles on the car, 2012 Impreza Sport Limited, 72 mile daily commute, 80% Highway, Cruise set @ 68.

I'm yet to break 30mpg on a full tank.

All these people claiming 42 MPG are full of it, or think the Instantaneous MPG meter is what they're actually getting.
No my reading is hand calculated. Not from computer reading. that hwy drive as posted earlier was at 105kph cruise on, no air, windows up. City I'm averaging now with some cold weather, 8.4l/100km cvt base 5door.
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