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Honda Civic Real World MPG

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

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


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#1400 of 2058
Re: civic mpg [caaz] by shipo
Dec 12, 2007 (9:36 pm)
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Replying to: caaz (Dec 12, 2007 9:06 pm)

"...saw a very interesting advertisement for a 200.00 dollar add to any car...using water turned hydrogen..."
 
Cool, somebody came up with a mechanical version of Snake Oil.
#1401 of 2058
Re: civic mpg [caaz] by sebring95
Dec 13, 2007 (4:27 am)
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Replying to: caaz (Dec 12, 2007 9:06 pm)

I think 40mpg is attainable in the 65-70mph range on long trips. I personally never hit that but never ran a full tank without at least some non-highway driving mixed in. 36mpg was my high tank and that was about 95% highway. I only put 6k miles on the car so it may not have been broken in, who knows.
 
Rate wind/road noise....that's a tough one. Compared to what? The Civic isn't' the quietest car by a long shot, but probably not bad compared to other economy cars. I didn't notice it being considerably more obnoxious at 80mph vs 70mph. Tire noise was a bit annoying which I'm sure could be fixed with some better tires. IMHO, the Civic is a bit jumpy at those higher speeds though. The steering is a bit over-assisted which also isn't as attractive at high speeds. 70mph felt like the sweet spot to me and that's about where I kept it. It was also rather easily effected by cross wind, again probably more obvious due to the steering feel.
 
IMHO, you need a heavier, more substantial vehicle to really feel secure AND quiet at 80mph.
 
Let us know how that $200 upgrade works out for ya.
#1402 of 2058
Re: civic mpg [caaz] by kipk
Dec 13, 2007 (4:42 am)
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Replying to: caaz (Dec 12, 2007 9:06 pm)

CAAZ,
 
Gosh, I haven't heard that term in years. But, Shipo hit the nail on the head. "Snake Oil"!
 
Many moons ago, traveling salesmen would show up in small towns, with their wagons of goods. . A very popular one, especially among the men, would be selling a product in a bottle that they said would cure most anything that might be ailing you.
 
They said the contents were from some exotic plant or far away country and had mystical healing powers. Of course it didn't work, but people bought it on the hope that it would. The alcohol and lace of Cocaine (legal back then) would help with pain temporarily. So people kept buying it. It became known as "Snake Oil".
 
The practice of promising anything, we need to hear, still goes on today. It is call "advertisement", and of course Political platforms.
 
Don't ya think that a Gizmo that would convert water to a burnable fuel would be on every car in the world. Or that the patient would have been bought up by "BIG OIL" and never heard of again? Save your money! "Snake Oil" doesn't work!
 
Me thinks blufz1 is also "Dead On"! 40mpg at 80mph seems like a bit of a stretch!
 
Kip
#1403 of 2058
Re: civic mpg [sebring95] by mjsten
Dec 13, 2007 (4:50 am)
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Replying to: sebring95 (Dec 13, 2007 4:27 am)

It is encouraging to hear all of the talk about mid 30 to 40 mpg. I have an 08 civic, non hybrid,,,, have 7000 miles on it 85% hiway.. High 32 MPG all hiway low 27 mpg, regular daily commute. Ave 30..
Very disappointed, passed on the 08 Accord to get the mileage and not getting the claimed mileage. Asked my service and sales people and was told that those numbers were probably pretty accurate and what I should expect. The extreme mileage claims were pretty much a stretch.
#1404 of 2058
Re: civic mpg [caaz] by drmbb
Dec 13, 2007 (5:14 am)
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Replying to: caaz (Dec 12, 2007 9:06 pm)

At 80 mph? No. Driving at 70mph (cruise control setting) on fairly level interstate runs, I've consistently gotten 41 mpg (+/- 1 mpg, depending on trip - measured over runs of about 250-350 miles).
 
I've also seen that mileage seems to go down rapidly above the 67-70mph cruise mark. Steep or rolling hilly terrain can also make a big dent in mileage, as does frequently varying speed. Which is why I use the cruise control on the highway whenever possible - it's actually very good at maintaining 65-70mph without varying engine rpm much at all (unless large steep hills get in the way). I have a 2007 automatic EX sedan.
 
As for wind and road noise. The civic is not the quietest small car on the market, but it is far from the noisiest. Since it's really a pretty subjective question, I'll just say the noise in my civic does not bother me at all. The stereo amply overrides any background noise, and the options of radio, CD and my iRiver mp3 player mean I'm always listening to something I choose and not paying any attention to background noises.
#1405 of 2058
Noisy Tires by sandman46
Dec 13, 2007 (4:32 pm)
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The Goodyear RS-A's seem to be a noisy tire...since I had to replace the back sneakers with Fuzion tires, I can't really comment on how quiet they are. Will have to wait until the fronts are replaced in a few months.
Why is it that Honda chose the 205/55/16 tires over the 205/60/16 or 205/65/16 size? I actually like the larger sidewall that a 65 series tire offers which seem sturdier in my opinion and also don't like the fact that the 55 series tires are also more expense than the other two sizes mentioned above?
Does anyone have a logical answer for my question? Thanks.
 
The Sandman
#1406 of 2058
Re: Noisy Tires [sandman46] by shipo
Dec 13, 2007 (6:01 pm)
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Replying to: sandman46 (Dec 13, 2007 4:32 pm)

A few points:
 - The 205/55 HR16 tires will provide much more responsive handling than the other two.
 - The 205/55 HR16 tires have a 24.9" tire diameter, which matches the diameter of 15" wheels that come on the DX, LX, and 17" wheels that come on the Si models (all Civics need tires of this size due to the programming of the ABS system as well as to allow correct readings on the speedometer and odometer).
 
 - The 205/60 HR16 tires that you might prefer have an outside diameter of 25.7" which would cause your speedometer and odometer to read incorrectly.
 - The 205/60 HR16 tires that you might prefer are not always "H" rated tires (your car requires at least an "H" rating).
 
 - The 205/65 HR16 tires that you might prefer have an outside diameter of 26.5" which would cause your speedometer and odometer to read incorrectly.
 - The 205/65 HR16 tires that you might prefer are NOT typically "H" rated tires until you step into the more expensive tires in this size (I only saw 4 tires on the market in that size with an "H" rating).
 
I hope this helps.
 
Best Regards,
Shipo
#1407 of 2058
08 Civic Auto MPG by lfc4evr
Dec 13, 2007 (6:56 pm)
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I have just about 700 miles on my Civic. At the first fill-up I got 28 mpg (95% highway miles). I just filled up for the second time few days ago and got 32 mpg (identical route and driving conditions, i.e. 60-65 mph, no more than 2500 rpm, a lot of coasting and letting the car roll to a stop instead of using brakes). I have some hope that it's going to get better and better. My mechanic friend told me that after the piston rings get a proper fit, I'll start seeing much better mileage. Did you all start seeing 35-40 mpg straight out of the dealers lot, or did you also observe this gradual increase in mileage? BTW, I live in NJ so I warm the engine for 5-10 mins in cold weather everyday until the idle rpm drops to 1000rpm. Should I cut down on this idling to warm the engine??
#1408 of 2058
Re: 08 Civic Auto MPG [lfc4evr] by shipo
Dec 13, 2007 (7:13 pm)
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Replying to: lfc4evr (Dec 13, 2007 6:56 pm)

Should you cut down your warm up time? Absolutely. Virtually every expert in the world will tell you that you're doing more harm than good.
 
Standard rule of thumb:
 - Get in the car
 - Start the car
 - Click on your seatbelt
 - Release the parking brake
 - Put the car in gear
 - Drive off, keeping engine RPMs and vehicle speeds conservative until the temperature gauge notches up a couple
 
Best Regards,
Shipo
#1409 of 2058
Re: 08 Civic Auto MPG [shipo] by drmbb
Dec 14, 2007 (5:15 am)
Reply

Replying to: shipo (Dec 13, 2007 7:13 pm)

Of course, if you live in those parts of the NE where morning conditions are just perfect to keep your windshield completely fogged up, you get stuck waiting until the defrost air has warmed up enough to at least let you see clearly. I hate that, sitting there wasting fuel, but I'm a bit odd that way, about wanting to actually be able to see what's in front of me when I pull out (others I pass on the road, often apparently are not so concerned).
 
Still, seriously, yes, I agree. Normally a warmup period purely at idle is unnecessary and a waste of fuel. The car will warm up much faster if moving at moderate speed anyway. I've noticed that with the civic - it will take ages for the temp. indicator to start moving if you just sit idling. But it will rapidly warmup to operating temp. once you start driving.

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