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01-19-2013, 03:59 PM | #3051 | |
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01-19-2013, 04:12 PM | #3052 |
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Vehicle:2012 Impreza CLL BL2 |
I believe that the MPG is related to the low torque that the 2.0i produces. If you are a bit tender with the right pedal, this prevents high RPMs and resultant low MPG. I have had the dealer adjust the dash display downward by 6%. Now my hand calculated MPGs is within .3 MPG to what is displayed - display is now mostly low. Even so, my son is getting somewhere around 25/26 MPG and I am getting a couple MPG higher now that it is wintertime. This is for 50/50 street and interstate driving. If I "step on it" entering the interstate, I see an immediate .3 MPG loss. Best MPG for me was about 38 MPG on country roads last summer. I too was expecting about 30 MPG in urban environment; however, that has not panned out. I use 10% ethenol (89 grade here). I have tested a couple of tanks of E0 and that provided about 1.5/2 MPG gain. Overall it is what it is and something that I will have to live with. MPG on this car is better than that observed on my 2008 OBS with a 4AT. Wish the gas tank held a few more gallons of gas, though.
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01-19-2013, 04:32 PM | #3053 | |
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01-19-2013, 05:46 PM | #3054 | |
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01-19-2013, 06:02 PM | #3055 |
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Location: Northeast Ohio
Vehicle:2022 Crosstrek Ltd. Magnetite Gray |
Made a 400 mile round trip today down the interstate to pick up some rims for winter tires. 36.6 on the winter blend. The cold has really taken a bite out of the numbers when running locally, but I'll live with that. They're on the car now with a set of Blizzak's. I guess we'll see what that does to fuel economy.
John |
01-19-2013, 08:03 PM | #3056 | |
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Vehicle:2012 2.0i Sport 5MT DGM |
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wait wait wait.... you pass people who are going 10-15 under the limit? i thought you said that if you were to do that you would die because it is unsafe, yet others can manage to do it? |
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01-19-2013, 08:04 PM | #3057 |
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Vehicle:2012 Impreza 5dr ltd Dark Grey Metallic |
5dr with CVT, 5k months ownership and just under 3k miles a month, i travel 30 miles a day to and from work and lots of errands for my folks. On average im lucky to break 30MPG on a tank, however when I drive conservatively (58 - 65 mph) on the highway i am usually getting 33MPG on those tanks.
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01-20-2013, 01:17 AM | #3058 |
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Vehicle:2013 Impreza Spt cvt Silver |
Too bad it doesn't compare favorably with other brands on Fuelly compared with EPA estimates.
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01-20-2013, 01:23 AM | #3059 |
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Vehicle:2013 Impreza Spt cvt Silver |
Flyboy, you are the master of contextomy. Well, in your own mind anyway...
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01-20-2013, 01:35 AM | #3060 | |
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Vehicle:2013 Impreza Spt cvt Silver |
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http://pure-gas.org/ |
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01-20-2013, 08:17 AM | #3061 |
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Stevedippydohnm,
Your own post stating it is dangerous to drive under the limit, http://forums.nasioc.com/forums/show...&postcount=245 |
01-20-2013, 08:40 AM | #3062 |
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Tri-State
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Vehicle:2016 2.5i Premium MT Dark Gray Mettallic |
uphill 6k rpm damn just speed up and maintain your speed, I keep the same rpm uphill unless i want to downshift and take off. use paddle shifters
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01-20-2013, 08:44 AM | #3063 |
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I made an interesting observation yesterday during my trip. Somewhere in these pages, it was mentioned using the paddle shifters more to keep the car at a lower rpm. (Not available on base.) Doing that on the way to work does in fact drop the rpm when the puter is still in its warm up cycle. There doesn't appear to be an adverse effect on the eco gauge on fairly level road.
What I noticed going down the interstate, (with a pretty good headwind), was when I did that on a grade, the eco gauge, (in the old days it was a vacuum gauge), dropped lower than letting the engine rev a bit higher to overcome the hill and head wind by leaving it alone. That would suggest that letting the puter control the CVT is more economical than the other way around. Disclaimer: I'm not sure the eco gauge is exactly like a vacuum gauge of old, but it is telling you similar things. Another note. Jan, whom I had mentioned recently got a 2013 Impreza Sport, who also has been less than enamored with her fuel economy called me to say she feels much better with it. Seems she needed to take her mom someplace yesterday which involved a fair amount of freeway and achieved the numbers that are published. All I'm saying is that here is someone who was dis-satisfied now realizes she IS getting what she should be when everything is right. It is pretty obvious by reading back through here that, (as previously mentioned), the cold weather knocks the he** out of the economy along with other factors. As for myself, I have always figured that as long as I can actually achieve the highest number published for the car, then it is performing as it should. Of course it only goes down from there. How far depends on many things. And no, I still do not dispute others are not achieving what they expect, but Jans situation is indeed interesting since she is (was) in the unhappy camp. Me, if I get the same in my every day as the rex I'm happy since I am saving on premium vs. regular. John |
01-20-2013, 08:46 AM | #3064 |
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Must be a pretty steep hill to get up to 6K. I have never seen more than 4 letting the CVT do its thing.
John |
01-20-2013, 08:52 AM | #3065 |
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Location: Webster, NY
Vehicle:2012 Impreza Sp 5sp Obs Blk Prl/Drk Gray Mtl |
Here's a theory that I'm wondering about:
In the winter time, I commonly leave my climate controls set at one of the defrost settings (either full defrost, or the split defrost with half the air blowing at the windshield and half blowing at your feet). I haven't listened for the compressor yet, but does anyone know if the split defrost setting engages the A/C compressor? On other brands of cars I've had, engaging defrost would automatically turn on the A/C and would light the A/C light so that you'd know it was on. On the Impreza, I know that full defrost engages the A/C (without lighting the A/C light). I don't know if the split defrost engages the A/C. I wish Subaru would design the car so the A/C light turns on whenever the A/C compressor is engaged, even when using defrost in the winter time. We all know that driving with the A/C on takes a toll on MPGs. Is it possible that some of you who are unhappy with your MPGs are driving all the time with the A/C compressor on, and don't even know it? |
01-20-2013, 09:00 AM | #3066 |
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If the control is set on defrost or defrost/floor it will engage the A/C compressor automatically as needed (it does not run constantly, but cycles on and off).
There is no way around this, it is engineered to engage without lighting up the A/C light because too many morons among us think A/C is only to get cold air in the summer, and would freak out if they saw that light come on in the winter, and try to shut if off, and call the dealer, etc. It comes on because A/C dehumidifies the air, along with cooling it. In the winter it is used to dehumidify the air before the heater core heats it, so the defrost works more quickly to defog the windows. In the old days you had to be aware of this and turn on the A/C yourself, now most manufacturers have automated the process. On a really cold day, the moisture from your breath will freeze to the inside of the windshield. Dehumidifying the air with defrost handles this very quickly. So it is possible people are driving around with it on, but it is equally possible that they are discounting the effects of speed, rapid acceleration, steep grades, cold engine temperatures, stop and go traffic, snow tires, and ethanol gas blends... |
01-20-2013, 09:02 AM | #3067 |
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Back in the, ahem.., good old days, the only time the ac compressor cycled was when the lever was in the ac position. It was common for the system to go bad due to inactivity. Note an old fridge in the kitchen that has run for 40 years without any trouble. Let it sit for several months and the gas will settle and crystalize. I do not know how the new refrigerant performs though. I'm speaking of R-12. Maybe someone here knows how R-134 acts.
So, yes the compressor cycles when the car is in the defrost setting and I think maybe in the hi/low setting for feet and windshield. How much and how often I don't know. Yes, that would also contribute to load on the engine. Another thing is when the alternator is working hard to produce electricity. Higher loads cause more drag. John |
01-20-2013, 09:05 AM | #3068 | |
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01-20-2013, 09:44 AM | #3069 |
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Vehicle:2012 Impreza Sp 5sp Obs Blk Prl/Drk Gray Mtl |
Right. So maybe people who are dissatisfied with their MPGs should consciously avoid both of the defrost settings unless the windows are really fogging up. Five percent is significant.
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01-20-2013, 09:55 AM | #3070 | |
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01-20-2013, 12:19 PM | #3071 |
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I am aware that the A/C goes on when the HVAC setting is set for defrost and split floor/defrost, so that is not a contributing factor to my problem. Wish it was
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01-20-2013, 12:38 PM | #3072 | |
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01-20-2013, 10:56 PM | #3073 | |
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01-20-2013, 11:05 PM | #3074 |
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01-21-2013, 12:00 PM | #3075 |
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Vehicle:2012 2.0i Marine Blue Pearl |
This is kinda related to this thread.
Someone said an engine coolant heater was really expensive if you found the one specific to the 2012, but found a generalized one on the subaru website somewhere, for like $30. Does anyone know where to find that? And how much would it cost to have a dealer install it? |
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