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2012+ Subaru Impreza Real World Fuel Economy

139 messages,  Last post on Apr 26, 2013 at 10:05 AM

You are in the Subaru Impreza Forum.

What is this discussion about? Subaru Impreza, Subaru Impreza WRX STi, Gasoline, Fuel Efficiency (MPG), Sedan, Wagon

Messages Page 4 of 14

#30 of 139 Re: 2012+ Subaru Impreza Real World Fuel Economy [westcoaster21] by jd_24

Aug 23, 2012 (2:45 pm)

Replying to: westcoaster21 (Aug 23, 2012 1:48 pm)
My results have been similar to Westcoaster's.
 
I drive more or less speed limit (55, 60, and 65) or stay with the flow of traffic, not slower than the flow, but I'm seldom the guy in the left lane going faster than the flow. I use a really light foot. Typically I've been getting around 36mpg with my sport premium. I have a 70 mile round trip commute. With construction I have a few miles of stop-n-go to deal with as well.
 
Yesterday with about 150 miles on the tank and the MPG display over 39mpg (which equals about 36.5mpg) I ran some very short trip errands. Car was already warm from my 30+ mile commute home. Highest speed was 35mph. Stop signs or lights every 400 yards. 3 trips and only 15 miles later the display average was at ~37mpg.
 
If the engine is cold when doing the same short trips, the mpg drops much faster.
 
I have just over 7000 miles on the odometer. My average MPG did creep up from 32ish at first to the now 36ish during the first 5 to 6000 miles.

#31 of 139 Re: 2012+ Subaru Impreza Real World Fuel Economy [jd_24] by oxmead

Aug 23, 2012 (3:42 pm)

Replying to: jd_24 (Aug 23, 2012 2:45 pm)
I'm on my first tank and the average mpg says 32 with mixed driving and the air is running. I'm at 263 miles and the gauge is one notch below half. I am taking it very easy until I get to 1000 miles.

#32 of 139 Re: 2012+ Subaru Impreza Real World Fuel Economy [oxmead] by sgoldste01

Aug 24, 2012 (1:04 pm)

Replying to: oxmead (Aug 23, 2012 3:42 pm)
Let me throw out this off-topic comment:
 
Regarding oxmead's comment, "I am taking it very easy until I get to 1000 miles", I just want to say that it's my unproven theory that taking it overly easy on an engine during the break-in period can cause issues. The manual states not to exceed 4k RPM, but it's my opinion that during break-in, you should work the car up to 4k RPM moderately aggressively (75% throttle) after the engine has warmed up. Not doing this can prevent the piston rings from seating correctly, and could result in a car that consumes oil.
 
Don't overly baby your car during break-in!

#33 of 139 Re: 2012+ Subaru Impreza Real World Fuel Economy [sgoldste01] by oxmead

Aug 24, 2012 (1:54 pm)

Replying to: sgoldste01 (Aug 24, 2012 1:04 pm)
Thanks, I did do that a couple time while playing with the paddle shifters.

#34 of 139 Re: Poor mpg and dealer or corporate does nothing [tonyhodge] by imprezasport

Aug 26, 2012 (10:25 pm)

Replying to: tonyhodge (Aug 22, 2012 12:14 pm)
I have the same problem with mpg. From Va Beach to Emerald Isle NC which is all flat, I got 31 mpg and I used cruise the whole way. I have never gotten over 32 and usually average about 30 mpg on highway driving. City driving does not come even close to the 27 that Subaru said I would get. 21-22 but I have gotten as low as 19. The dealer said nothing was wrong and Subaru said to log where I got gas and track it but they did not say what to do with the info after I got it. They could care less. This is my second Subaru and I am really disappointed in the Impreza Sport with the cvt. With this kind of gas mileage I could have gotten a bigger vehicle with the same mileage. What was really bad was I followed my sister to New York and she drove a Toyota Avalon and she got 30.5 mpg while I got 31. Twice the car with a lot more luxuries and almost the same gas mileage.

#35 of 139 Re: Poor mpg and dealer or corporate does nothing [imprezasport] by sgoldste01

Aug 27, 2012 (5:16 am)

Replying to: imprezasport (Aug 26, 2012 10:25 pm)
How fast were you driving on your VA to NC road trip? Have you checked your tire pressure? Have you experimented with different brands of gas? How loaded with people/luggage was your car? Was the A/C running the whole time?

#36 of 139 Re: Poor mpg and dealer or corporate does nothing (sgoldste01) by imprezasport

Aug 27, 2012 (7:31 pm)

The highway went from 55 to 65 to 70 and back to 55. Probably 50% was at 55. I used cruise and stayed at the speed limit or below it. I added air to my tires prior to leaving. Shell seemed to get me a mile more gallon but there does not seem to be much other difference between the rest of the gas brands. AC was running on the lowest setting because of humidity. Two people in the car with two pieces of luggage - not really loaded down. I get the same gas mileage whether it is one person or one person and two dogs (75 lb and a 15 lb) or two persons. On the way back I did not use cruise and got 31.3 mpg.

#37 of 139 2012 Disappointment by mbluto

Oct 02, 2012 (6:53 pm)

With approx. 1,000 miles on my 2012 Impreza Sport Limited 2.0 CVT, I'm driving 75% highway and getting about 29 - 30 mpg.
 
I check tire pressure, use different gas stations, am carrying no extra weight and get passed by little old grannies. I drove faster in my 2009 Nissan Versa S and average 33 mpg, with highs in the 37 range.
 
I blame a crappy CVT tranny that actually slows the car during downhill decents and switches constantly between gears, again on downhills. I have read other complaints about this same transmission issue. This is not a 'CVT is different' issue, I've driven other CVTs and never felt the car slow when you step off the gas because of engine breaking.
 
No, I haven't had the car to the dealer yet, but I am putting a sign in the back window warning people off the Impreza. I should have bought a larger SUV for the $ spent upfront, and now on gas. Yes, very disappointed.
 
Do check the tranny issue before considering the Impreza CVT.

#38 of 139 mileage 5 dr Sport, CVT by fredjohnson

Oct 02, 2012 (9:19 pm)

Mpg on car readout said 33.2 mpg and my math calculated 31.2 mpg. So, a difference of about 6% this time around. Wish Sub wouldn't make their readout so optimistic because its just a plain old LIE. However, that mileage was lots of freeway driving at speeds of mostly 65-85 mph to and from work. Some stop light in town driving also thrown in there. On a highway going under 60 mpg I can easily get a real 40 mpg(43 mpg indicated).

#39 of 139 Re: 2012 Disappointment [mbluto] by fredjohnson

Oct 02, 2012 (9:28 pm)

Replying to: mbluto (Oct 02, 2012 6:53 pm)
Mbluto, So, why don't you use the paddle shifters downhill if you don't like the higher revs? I use paddles all the time in cases like that. 30 mpg isn't bad at all depending on how fast you're driving. It IS an AWD, so what do you want? Don't expect mpg in the stratosphere and don't compare the car to some 2 wheel drive something or other when your talking mpg. They aren't comparable. A larger SUV? lol. Even a small SUV like a CRV is going to cost $28k. My 5 door Sub Sport cost $21k. My wife's new Honda CRV get's 21 mpg by the way in the city.

Messages Page 4 of 14

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