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Honda Civic Real World MPG

2058 messages,  Last post on Aug 26, 2009 at 6:19 PM

You are in the Honda Civic Forum. Your Hosts are pat & karens

What is this discussion about? Honda Civic, Fuel Efficiency (MPG)


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#1105 of 2058
Re: mpg reports NOT filter debates please [jefferyg] by blufz1
Aug 16, 2007 (9:38 pm)
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Replying to: jefferyg (Aug 16, 2007 9:20 pm)

Estimate the a/c at 2-3 mpg.
#1106 of 2058
Re: mpg reports NOT filter debates please [jefferyg] by ras314
Aug 17, 2007 (4:16 am)
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Replying to: jefferyg (Aug 16, 2007 9:20 pm)

I would expect the A/C to have a much bigger effect in slow speed city driving. I've only used it once so far, mostly rolling hills and couldn't really tell much effect. What does make a big difference is to not use cruse control in hilly country.
 
I usually drive under the speed limits at night without cruse control in my area, due to the animals on the road and light traffic. This results in considerable mileage improvement, from around 45 mpg daytime to near 50 at night over the same 100 mile stretch.
#1107 of 2058
Re: mpg reports NOT filter debates please [ras314] by jefferyg
Aug 17, 2007 (4:53 am)
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Replying to: ras314 (Aug 17, 2007 4:16 am)

45 mpg daytime to near 50 at night over the same 100 mile stretch.
 
Dude, what are you driving? That's incredible - day or night.
 
I totally agree with you on the cruise control. I took about a 165 mile trip yesterday evening. I watched the tach and tried to keep it at or below 2000 rpm. I still had well over half a tank when I got home. However, my wife is driving the car to school today. She can negate my 165 miles of frugality with one 15 mile round trip to school.
 
A hybrid would probably do very well on her daily commute. The trip she makes each day is constant stop and go, uphill and down on mostly backroads.
#1108 of 2058
Re: mpg reports NOT filter debates please [jefferyg] by ras314
Aug 17, 2007 (7:36 am)
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Replying to: jefferyg (Aug 17, 2007 4:53 am)

Car is a 2007 Civic LX, manual with 1500 miles now. I would sure like to know how the hybrids would do on the same road. A lot of 15 mile round trips to town is what drops my average to something like 42-43 mpg. While not much stop and go a hybrid seems more appropriate for that type use.
 
2000 rpm seems to be too low, 2500 to 3000 works better to keep from lugging the engine with any headwind or uphill grade.
 
Any rate, I am happy with the Civic.
#1109 of 2058
Re: mpg reports NOT filter debates please [ras314] by jefferyg
Aug 17, 2007 (11:37 am)
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Replying to: ras314 (Aug 17, 2007 7:36 am)

My car has an automatic (my wife hates a stick - and if Mama ain't happy...).
 
I was driving on 2-lane state highway a good bit last night so the speed limit's only 55. At 2000 rpm I'm running around 60 mph, so I don't think it's straining. I really think the big issue here is the A/C. It's so hot here right now, you have to run it wide open during the day and well into the evening.
 
No lie - it's so hot here, I saw a handicapped parking sign a few days ago that the plastic coating was peeling off and curling up from the heat. A friend of mine in Alabama told me that the plastic in the rear of his wife's Expedition was expanding because of the heat. Another friend said they got in their car at the grocery yesterday and the car's thermometer was reading 122 degrees on the asphalt. And sadly, it's actually not as hot where I live in South Mississippi as it has been in the Central and Northern part of the state.
 
So, yes, I'm sure the A/C is my gas mileage nemesis.
#1110 of 2058
Re: mpg reports NOT filter debates please [jefferyg] by shipo
Aug 17, 2007 (8:21 pm)
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Replying to: jefferyg (Aug 17, 2007 11:37 am)

"And sadly, it's actually not as hot where I live in South Mississippi as it has been in the Central and Northern part of the state."
 
Geez I love living up here in New Hamster, we hit a high of 78 today with a projected low of 55 tonight, and down to the high forties tomorrow night. Talk about great sleeping weather.
 
Best Regards,
Shipo
#1111 of 2058
Re: mpg reports NOT filter debates please [shipo] by stevecebu
Aug 17, 2007 (10:08 pm)
Reply

Replying to: shipo (Aug 17, 2007 8:21 pm)

Geez I love living up here in New Hamster, we hit a high of 78 today with a projected low of 55 tonight, and down to the high forties tomorrow night. Talk about great sleeping weather
 
Is that anything like Cow Hampshire my home State?
It'll be good to get back there after almost 5 years of being away.
#1112 of 2058
Hmmm by harvey44
Aug 18, 2007 (4:28 am)
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I'm usually the guy with the higher mileage that the whiner don't believe - getting 35-43 with our 06 MT. Now the shoe is on the other foot I guess - 50 mpg? I guess I'd buy that if the touch was feather light and the avg speed was 50 or so. when we're getting 43 or so we are doing 68 or maybe a bit more.
#1113 of 2058
Re: mpg reports NOT filter debates please [jefferyg] by ras314
Aug 18, 2007 (7:14 am)
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Replying to: jefferyg (Aug 17, 2007 11:37 am)

2000 rpm for 60 mph with an automatic makes me really glad I have the manual, assuming we are talking about the same 1.8 liter engine. Looks like 2000 rpm is about 47 mph in fifth, 2500 about 58. Much under 55 in fifth will take full throttle on a 5 to 6 % grade. No way will it run 50 in fifth on this grade, maybe its not broke in well yet.
 
Local altitude is 5000 to 8000 ft, could be that makes the difference. At least the temps and humidity are usually lower than Mississippi and Ala.
 
As a kid in Ala. I can remember almost leaving foot prints in the asphalt. I haven't been down to desert country with the Civic yet, but over in Tucson,Az in summer I can't hold the steering wheel if parked with the windows up. Temps of 110 seem common, I've no doubt the milage will really drop down there running A/C full time. And yeah, I use a reflecting window screen, there just ain't much shade.
#1114 of 2058
Re: Hmmm [harvey44] by ras314
Aug 18, 2007 (7:28 am)
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Replying to: harvey44 (Aug 18, 2007 4:28 am)

..."50 mpg? I guess I'd buy that if the touch was feather light and the avg speed was 50 or so"...
 
Yeah, I worked pretty hard at it, slowing on uphills, very light acceleration, etc. A few min. over 2 hours with a couple small towns along the way, so avg was about 50, max 65 or so down hill. Traffic was very light at 2 am, not safe nor very hospitable to drive that slow in the daytime.
 
Wanted to know if it is worthwhile to be this careful, also a little bragging rights maybe?

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