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Old 09-05-2013, 05:11 PM   #4801
flyboy1100
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Quote:
Originally Posted by dhlee528 View Post

I use 87e10 (regular) from Costco, and close to 95% highway, my trip meter usually says 34.5MPG when I have quarter left, and when I actually calculate I get bit low, somewhere in 31~32 MPG..

last weekend I went to Spokane WA from Olympia WA, trip meter was around 35 MPG with not so much in the cargo space (maybe 100lbs?)

Never tried 91...
That's good to know, but I can still get some e0 around here, and I will drive a little out of my way to get it. I abhor ethanol.
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Old 09-06-2013, 09:11 PM   #4802
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Highway driving, the best I have gotten was at 120km/h, I can get 6.5L/100km. And I can get that on average on the highway. I've gotten 675km to a tank of fuel, with about 4 litres of fuel left.

Combined city/highway, I usually get 9.6L/100km and I drive with a heavy foot.
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Old 09-07-2013, 01:03 AM   #4803
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I put 89 in the tank this time and am about 130 miles into it. Usual commute mpg numbers are up from 27 to 30 and she has noticeably more pep. I'm pretty sure this is placebo but anyone else ever notice this?
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Old 09-07-2013, 05:53 AM   #4804
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Quote:
Originally Posted by superheater View Post
Highway driving, the best I have gotten was at 120km/h, I can get 6.5L/100km. And I can get that on average on the highway. I've gotten 675km to a tank of fuel, with about 4 litres of fuel left.

Combined city/highway, I usually get 9.6L/100km and I drive with a heavy foot.
Are those numbers hand calculated or from the dashboard computer?
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Old 09-07-2013, 09:52 AM   #4805
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Quote:
Originally Posted by hemophilic View Post
I put 89 in the tank this time and am about 130 miles into it. Usual commute mpg numbers are up from 27 to 30 and she has noticeably more pep. I'm pretty sure this is placebo but anyone else ever notice this?
About what I've seen using 91 no E.
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Old 09-11-2013, 01:36 AM   #4806
hi5.0
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Refueled last weekend. Hand calc. indicates a little over 30 MPG avg. Getting caught in heavier traffic, doing shorter trips, and using A/C more often this summer.
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Old 09-11-2013, 01:05 PM   #4807
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I've also noticed that my hand calculated MPG is off from what the car says. The car seems to be high by about 2 MPG. Got 32, 31 and 30 and calculated 30, 29, and 28. Still fairly decent gas mileage. I drive about an even amount of city and highway, but all the highway has a lot of hills. I've also taken a couple trips up into the mountains with an elevation increase of over 5,000 feet. I need to get some nice flat highway miles to see what I can get with the CVT.
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Old 09-11-2013, 02:26 PM   #4808
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Quote:
Originally Posted by VegasSubie View Post
I've also noticed that my hand calculated MPG is off from what the car says. The car seems to be high by about 2 MPG. Got 32, 31 and 30 and calculated 30, 29, and 28. Still fairly decent gas mileage. I drive about an even amount of city and highway, but all the highway has a lot of hills. I've also taken a couple trips up into the mountains with an elevation increase of over 5,000 feet. I need to get some nice flat highway miles to see what I can get with the CVT.
Mine is also 2 mpg high and that was common in the 2012 Impreza as well, the dealer should be able to adjust it too. Another thing some Impreza owners see is that the odometer under-measures mileage by about 3% if you compare it to a GPS nav. If that's the case then the hand calculated mpg would be roughly 1 mpg lower than the actual mpg.
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Old 09-11-2013, 03:31 PM   #4809
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Quote:
Originally Posted by Haunty View Post
Mine is also 2 mpg high and that was common in the 2012 Impreza as well, the dealer should be able to adjust it too. Another thing some Impreza owners see is that the odometer under-measures mileage by about 3% if you compare it to a GPS nav. If that's the case then the hand calculated mpg would be roughly 1 mpg lower than the actual mpg.
Let's say you got 400 miles on a tank and used 14 gallons. That would be roughly 28.5 mpg. The car would probably be saying you got around 30.5 mpg.

If it under-measures by 3% that would mean you actually went 412 miles. With 412 miles for that same tank it would be 29.4 mpg.

That would actually be about 1 mpg lower than the mpg the car calculates, and 1 mpg lower than the hand calculated mpg.

On another note, the larger tires I put on my car are also putting the speedometer off by around 0.4% under. So I'm probably getting slightly better than what the car is calculating too.
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Old 09-11-2013, 03:32 PM   #4810
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Just found a source of E0 87!
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Old 09-11-2013, 03:43 PM   #4811
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http://pure-gas.org/

Note it if it isn't already there!
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Old 09-11-2013, 06:14 PM   #4812
flyboy1100
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Quote:
Originally Posted by Haunty View Post
Mine is also 2 mpg high and that was common in the 2012 Impreza as well, the dealer should be able to adjust it too. Another thing some Impreza owners see is that the odometer under-measures mileage by about 3% if you compare it to a GPS nav. If that's the case then the hand calculated mpg would be roughly 1 mpg lower than the actual mpg.
as the tires wear the % drops though. I started at 3% and after 30k miles I am down to 2.5%
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Old 09-12-2013, 05:12 PM   #4813
Commander Keen
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EPA economy tests call for E0, and this is their excuse:

Quote:
EPA fuel economy tests are conducted according to Federal testing regulations which require 100 percent gasoline. These regulations could be changed, but changing them would be somewhat problematic. While it is common for gasoline pumps to allow for up to 10 percent ethanol, the actual amount of ethanol blended into the gasoline varies greatly, and fuel blending requirements vary by state. Changing the test methods would also make it difficult to compare vehicles tested with ethanol blends with those tested with straight gasoline. So, without a national standard for blended regular gasoline and a Federal mandate to change the test fuel used, the EPA will not change the test fuel.
Any gas station not diluting their gasoline as much as possible is losing money, therefore it's safe to assume that "up to 10% ethanol" is exactly 10% ethanol. It's what is available at every gas station around here, and in the tanks of 95%+ of passenger vehicles, yet the EPA tests with pure gasoline, found at 1% or less of gas stations in this country.

I can't wait to see how TheGreatOne™ plans to double our real fuel economy while forcing us to use harmful biofuels with terrible ROEIs.
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Old 09-12-2013, 07:34 PM   #4814
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Quote:
Originally Posted by Commander Keen View Post
EPA economy tests call for E0, and this is their excuse:

Any gas station not diluting their gasoline as much as possible is losing money, therefore it's safe to assume that "up to 10% ethanol" is exactly 10% ethanol. It's what is available at every gas station around here, and in the tanks of 95%+ of passenger vehicles, yet the EPA tests with pure gasoline, found at 1% or less of gas stations in this country.

I can't wait to see how TheGreatOne™ plans to double our real fuel economy while forcing us to use harmful biofuels with terrible ROEIs.
X2!!!!

Can't you see, your supposed to eat the corn or you don't get dessert, then you get your dessert taken away because you ate the corn. This way its a win-win. Collect money from each power player, and then just tell us minions that we really shouldn't be concerned because dessert is bad anyway. ;-)

100% second your post.
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Old 09-12-2013, 07:39 PM   #4815
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I ran last 3 tanks with 87 E10. My car ran like a suicidal inmate on death row ( a white inmate, kinda fat and lazy- since it best represents myself and I'm not offending anyone) , then filled up today while empty, with 91 No E- and before I was out of the lot it pepped up like it just received a pardon. My imp doesn't run well with ethanol. My Tahoe loves it, running E85 it'll scream with it, but my car hates it.
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Old 09-12-2013, 08:17 PM   #4816
stevehnm
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C'mon guys - don't you know ADM is broke? Don't you feel sorry for their stockholders? It's just big business, scamming the American people and starving the rest of the world so they can make ethanol out of corn instead of feeding people...

They really deserve those trainloads of cash shipped from Washington that they get by just spending a little "donating" to politicians who give them their votes.

Don't they?
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Old 09-12-2013, 08:43 PM   #4817
Commander Keen
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I just got 45.9 MPG over my 30 mile mixed commute with E0 87.

This is about 25% above my typical MPG on E10. The 10% price premium is easily justified, and that's without considering long term fuel system and engine wear.
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Old 09-12-2013, 09:54 PM   #4818
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Quote:
Originally Posted by Commander Keen View Post
I just got 45.9 MPG over my 30 mile mixed commute with E0 87.

This is about 25% above my typical MPG on E10. The 10% price premium is easily justified, and that's without considering long term fuel system and engine wear.
Driving what? I wish we had 87 E0, havnt seen it. I did hear talk about bringing in 84 blended though. If they do that, I think I'll open up a mechanic shop. Any mechanics looking for work in the Midwest? Seems they are hellbent on destroying every vehicle in the road one way or another. Wonder who lobbied for that blend?
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Old 09-12-2013, 10:27 PM   #4819
flyboy1100
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Quote:
Originally Posted by G2Spfld View Post
Driving what? I wish we had 87 E0, havnt seen it. I did hear talk about bringing in 84 blended though. If they do that, I think I'll open up a mechanic shop. Any mechanics looking for work in the Midwest? Seems they are hellbent on destroying every vehicle in the road one way or another. Wonder who lobbied for that blend?
as in 84 blended with ethanol to bring up the octane? isn't that what they do already?
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Old 09-12-2013, 10:28 PM   #4820
flyboy1100
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Quote:
Originally Posted by Commander Keen View Post
I just got 45.9 MPG over my 30 mile mixed commute with E0 87.

This is about 25% above my typical MPG on E10. The 10% price premium is easily justified, and that's without considering long term fuel system and engine wear.

report back after the tank.
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Old 09-12-2013, 11:20 PM   #4821
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Originally Posted by flyboy1100 View Post

as in 84 blended with ethanol to bring up the octane? isn't that what they do already?
If the knife in the back hurts, you don't add more knives to fix the problem.
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Old 09-12-2013, 11:48 PM   #4822
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Quote:
Driving what?
My '12 5MT Impreza.

Quote:
report back after the tank.
Will do. My E10 tanks have been in the 33-34 MPG range.
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Old 09-13-2013, 12:33 AM   #4823
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I did a trip from Mountlake Terrace WA (Just north of Seattle) to Las Vegas and back via Crater Lake (wow, what a view) the week before Labor Day. I averaged 32 mpg for the whole trip. That includes the around town stuff while I was in Vegas. My best 'tank' (hand calculated) was 35 mpg.

I'm quite happy with the fuel economy I got out of my Sport. The route I took had a lot of altitude change (after I crossed the Cascades on I-90 about as low as I got was 2000') with a lot above 4000 and a few climbs to 7000+. The car was a bit sluggish at 7000'.
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Old 09-13-2013, 08:13 AM   #4824
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as the tires wear the % drops though. I started at 3% and after 30k miles I am down to 2.5%
Wow! What tires do you have? If they started at 12/32's of an inch tread (all weather tires?) they are good for 150,000 miles until they only have 2/32's of an inch left!

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Old 09-13-2013, 08:27 AM   #4825
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Originally Posted by apollo_f1 View Post
I did a trip from Mountlake Terrace WA (Just north of Seattle) to Las Vegas and back via Crater Lake (wow, what a view) the week before Labor Day. I averaged 32 mpg for the whole trip. That includes the around town stuff while I was in Vegas. My best 'tank' (hand calculated) was 35 mpg.

I'm quite happy with the fuel economy I got out of my Sport. The route I took had a lot of altitude change (after I crossed the Cascades on I-90 about as low as I got was 2000') with a lot above 4000 and a few climbs to 7000+. The car was a bit sluggish at 7000'.
The higher the elevation the less air the car is pushing, and today's fuel management systems compensate for elevation so mpg increases with increased elevation. That's one of those "your mileage may vary" things. If you trace your route on a topo map you will typically find that the grade doesn't vary much very often - that's a highway design priority. My Corolla that is also rated at 36 mpg highway gets 40 mpg (summer gas, no AC) at 80 mph at 5,000 ft elevation! That's a whole bunch better than my Impreza CVT.
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