- #1797 of 2058
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Re: [kenlw]
by wai
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Sep 12, 2008 (5:16 am)
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Replying to: kenlw (Aug 29, 2008 12:30 pm)
My 08 EX-L AT 's first 600 miles (2 fills) got 31-32 MPG 80% highway at 60-65 mph. a little lower than I expected. This time I filled up 3 Gallons of 93 octane to mix with 10.2G 87, to see if there is any improvment in the MPG. Is it normal that DRL will turn off once you turn on your headlight (low or high beam)?
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- #1798 of 2058
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Re: [wai]
by mjsten
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Sep 12, 2008 (7:52 am)
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Replying to: wai (Sep 12, 2008 5:16 am)
Same basic mileage that I get. I have the same model with 15,000 Miles and the very best that I have been able to get is 38 mpg on a 280 mile trip straight hiway at pretty much fixed speed of 70 mph.
Heard a lot about super mpg on these cars but have yet to see it on day to day.
Would be interested in the results of the premium test.
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- #1799 of 2058
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Re: [mjsten]
by bearcrkrd
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Sep 12, 2008 (9:48 am)
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Replying to: mjsten (Sep 12, 2008 7:52 am)
I am almost at 10,000 miles, after only a couple weeks over three Months. '08 LX Auto. MPG average is 39. Low of 36.3, high of 45mpg. When I start a road trip I top off using Premium. Fill with premium first gas stop, then go to mid-grade for rest of the trip. Usually like that. I keep track of every fill; Octane, Gallons, MPG. My first tank out of the dealership was 36.3, so did fine right out of the gate. Since that first refill have rounded to even or .5. I mean 37 or 37.5, not 37 .1 or 37.8, etc.. I usually round Down! Get real good mileage on two-lane hiways, too. I miss my Sienna, but this kind of mileage takes some of the sting out. I have been gone almost every week since I bought this thing. Do need to take it easy, and turn the key off more often, for the long haul.
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- #1800 of 2058
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Re: [bearcrkrd]
by wai
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Sep 12, 2008 (9:59 am)
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Replying to: bearcrkrd (Sep 12, 2008 9:48 am)
So you think the hign octane helps your mpg, but even though our EX is around 30 pounds heavier than your LX, your mpg is around 5 mpg better than mine.
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- #1801 of 2058
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Re: [bearcrkrd]
by mjsten
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Sep 12, 2008 (10:01 am)
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Replying to: bearcrkrd (Sep 12, 2008 9:48 am)
Must be a lot of variation car to car... I will try the high octane to see if it makes any dif, but I do the same thing on documenting every fill up every station, cost etc. All this car does is pretty much two and 4 lane highway, and to be honest, I only get about 10% better mileage than my 04 accord.....
Would not have downsized for that type of diference, had I known....
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- #1802 of 2058
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Re: [wai]
by pescatore
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Sep 12, 2008 (6:39 pm)
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Replying to: wai (Sep 12, 2008 9:59 am)
I think at 600 miles, you should remain calm My worst mileage with my 08 EX 5spd was my first 2 tanks, and I got a little over 32 mpg on both. Then it started climbing. My overall average now at 7100 miles is 35.3 MPG and still climbing, and that's at about a 65/35 hwy/city mix. Considering the EPA combined estimate is 29 MPG, I don't think that is anything to sneeze at. Even better after coming from an '01 RAM 1500 that got 13 overall.
My best tank has been 37.5 mpg, and that was mostly highway, under 65 for the most part, with no AC. I can duplicate 37 pretty consistently that way even with a 70/30 mix. All on good old RUL. I honestly don't think higher octane is going to be cost effective for you.
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- #1803 of 2058
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Higher Octane
by bearcrkrd
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Sep 13, 2008 (9:04 am)
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Replying to: mjsten (Sep 12, 2008 10:01 am)
I use higher Octane on road trips, but not for normal day to day driving. The higher Octane on long trips is just a habit developed from experience. With other cars. Got better mileage on Interstate trips using higher Octane, so stuck with it on this Civic. I use regular, 87 Octane, maybe 85% of the time. Also don't drive with a full load of gear and passengers. That's why I downsized - couldn't justify the gas $$ for just one person, and no, or little, gear.
My brother has an '05 Accord 4 cylinder Automatic, and I remember him smiling about the freeway gas mileage early on, 40+ on some long leg of a journey. Don't know if that has remained constant over time, or if he ever uses higher Octane. I do know he uses full synthetic oil, FWIW.
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- #1804 of 2058
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by sypher
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Sep 15, 2008 (5:04 am)
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I'm sure it's been said before but it bears saying, keep track of the type of fuel you are using. If it is an ethanol blend your milage may be between 10-20% LOWER than with a non-ethanol blend. Ethanol fuels dupe the computers in most cars into thinking they are running lean and cause them to make the fuel mixture richer i.e. pump more fuel thus lowering your milage.
So if you are getting 29 MPG with an ethanol blend you could possibly increase your mileage to between 31.9 and 34.8 MPG just by switching.
Just a thought.
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- #1805 of 2058
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Re: [sypher]
by tiff_c
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Sep 15, 2008 (8:35 am)
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Replying to: sypher (Sep 15, 2008 5:04 am)
I'm sure it's been said before but it bears saying, keep track of the type of fuel you are using. If it is an ethanol blend your mileage may be between 10-20% LOWER than with a non-ethanol blend.
Yes this is true but some states like New Hampshire have mandated 10% ethanol in all the gas sold here. So we don't have a choice. I know I could get better mpg if I was using straight gas. Sadly not an option for us here.
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- #1806 of 2058
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Re: [tiff_c]
by oldbob
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Sep 15, 2008 (3:09 pm)
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Replying to: tiff_c (Sep 15, 2008 8:35 am)
Ditto NY.
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