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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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#1790 of 2058
Re: mileage update [kenlw] by dantz
Aug 25, 2008 (8:55 am)
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Replying to: kenlw (Aug 25, 2008 8:15 am)

I can't detect any loss of engine power at all when the AC is turned on. It must be extremely efficient. Your ~1.0 mpg observation sounds reasonable to me.
#1791 of 2058
Re: mileage update [kenlw] by wai
Aug 29, 2008 (11:18 am)
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Replying to: kenlw (Aug 25, 2008 8:15 am)

Ken, will 225-40-18 tire wheel interfere the front tire movement? Can EX has better performance using premium gas as their compression ratio is 10.5?
#1792 of 2058
by kenlw
Aug 29, 2008 (12:30 pm)
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wai: the 225-40-18 do not interfere at all, but realize the HFP kit does lower the car about 1", so that may impact clearance. My understanding is that the lowering is required for 18", but I can't be certain of that.
 
I just like the looks.....
 
Better performance would be nice, but let's be real: it's a Civic, not even an Si. If I had wanted performance i would have chosen something with at least 2 more cylinders, probably the Accord or Altima v6 coupe. But I wanted a good looking car that would last a long time..with good mileage. so it's a civic for me for the next 10 years (i hope).
 
Honestly, it's my 1st Honda and the lack of torque is very irritating after 15 years of driving v6 Camrys. It takes a LOT of getting used to! Other than the lack of torque, I'm very, very happy with it.
 
My previous car was a 97 Camry v6, and at 10.5:1 it did see some benefit from 89 or even 91/93 fuel. 89 seemed to be the best bang-for-the-buck, but realize that car has a lot more HP and a ton more torque. (197/212?). I moved that car from 195 to 215 tires just to help keep them planted in normal traffic. On the Camry, I noticed more improvement with 89 over 87 than I did with 91/3 over 89.
 
I've never tried anything other than 87 in the Civic so I can't say if more octane would make any difference or not. it may be worth a try if you are interested in doing so over a few tankfuls, I would be interested in what you find.
#1793 of 2058
Re: [kenlw] by thegraduate
Sep 03, 2008 (7:17 am)
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Replying to: kenlw (Aug 29, 2008 12:30 pm)

Honestly, it's my 1st Honda and the lack of torque is very irritating after 15 years of driving v6 Camrys
 
The key to this isn't the "Honda" part, but the fact that you stepped from a 3.0L or larger V6 into a 1.8L 4-cyl. Having driven both a Corolla with a 4-speed Auto, the Civic actually feels a lot more lively. Welcome to Honda.
 
I doubt you'd complain about lack of torque in a V6 Accord.
#1794 of 2058
08 Civic EX Coupe by ampeg500
Sep 03, 2008 (2:54 pm)
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Over the first 8,500 miles, I've averaged about 33 mpg. Up to 40 on the highway, no lower than 30 around town.
#1795 of 2058
- by dudleyr
Sep 04, 2008 (8:21 am)
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If you want the civic to feel lively then get the manual transmission. It is quite a bit quicker and gets better mpg.
#1796 of 2058
Re: [thegraduate] by kenlw
Sep 05, 2008 (4:57 pm)
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Replying to: thegraduate (Sep 03, 2008 7:17 am)

"I doubt you'd complain about lack of torque in a V6 Accord."
 
not now, for sure! But the older Honda V6 engines were pretty upside down with much higher HP than torque, and requiring rather high RPM to get the rated HP. Mercifully they've changed that on most of their engines and they're pretty much in lock step with Toyota. I think the s2000 still needs over 8k to get the rated HP, iirc.
 
I still love driving that 97 v6 camry (my son now has it, 230,000 miles!), I put almost all of those miles on it myself over 10 years of Houston commuting. But, alas, the newer Camrys are battleships and imho, just ugly. The Hondas have won me over with far superior styling.
 
If i didn't need the superior mileage (I commute 65 miles daily), I would have that 08 Accord V6 coupe in a heartbeat. Absolutely one of the best lookers on the road today.
#1797 of 2058
Re: [kenlw] by wai
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)?
#1798 of 2058
Re: [wai] by mjsten
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.
#1799 of 2058
Re: [mjsten] by bearcrkrd
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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