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Sedans Honda Civic 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
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Replying to: familydadx4 (Jun 11, 2009 10:20 am) familydad, 1-2 mpg increase seems about right with the Shell gas. I'm driving an '03 4WD Pilot. With the "Flash Foods" gas I was getting 17-19 mpg local driving. With Shell it is more like 19-21. That is a 5%-10% increase. Right now the Shell is about $2.59 and the Flash Foods gas is $2,54. Cost per mile is a bit better with the Shell, and I feel it to be a "better" fuel for the engine and injectors. REAL WORLD : MORE MONEY CAN BE SAVED WITH THE THROTTLE THAN WITH THE GAS PUMP PRICE. I didn't see any appreciable difference with the other "Name brands". But,You may find that another brand runs better and gets better mileage in your car. It is a long slow learning process. And I don't have a clue as to why one brand of gas would get better mileage than another. But they sometimes do!  Kip |
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Just purchased 09 civic lx coupe auto. mixed 50/50 driving on first tank calculated with gallons/miles to be 31 mpg. Happy so far. 
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Replying to: davepod (Jun 15, 2009 11:51 am) I have an 08 Civic EX auto with 24,000+ miles that I purchased specifically for the mileage and, quite frankly, it has not performed as I thought it would. I average 29.8 mpg over that 24,000 miles, around what I averaged on an 04 accord EX 4 cyl. I drive a 80 / 20 hiway/ city mixed route daily. Watch the start stops, travel the speed limit, keep tires inflated, etc, in fact all of the stuff that you are supposed to do. May look at a hybrid or diesel next.
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Replying to: mjsten (Jun 15, 2009 12:12 pm) |
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Has anyone determined the Civic air conditioner's effect on both performance and mileage? Because I can't feel any difference in acceleration whether my 2008 Civic's AC is on or off. I realize that this model of Civic has a somewhat underpowered air conditioner, but it must also be remarkably efficient, as it seems to get the job done without any noticeable drag on the engine. With my old Corolla I had the habit of temporarily turning the AC off whenever I needed an extra boost of power, for example on uphill freeway on-ramps, but with the Civic I can no longer tell the difference, so I just leave the AC on. All I can think of is to do some test accelerations from zero to 60 with the AC both on and off to see if there is much difference in the elapsed time or the distance required. (I'll try doing this and then report back.) I'd also be interested in knowing if anybody with a ScanGauge (or a similar device) has checked the instantaneous mileage in order to determine the AC's effect on highway mileage, while leaving the windows up. All I have found so far is comparisons between AC with windows up, and no AC with windows down, but that comparison is flawed because they are changing two elements at once. I think leaving the windows up and keeping the fan on while switching the AC on and off would be a fairer test. |
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Replying to: dantz (Jun 23, 2009 12:33 pm) Hope that helps.
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Replying to: thegraduate (Jun 23, 2009 8:38 pm) |
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| Bought my 2009 Civic LX-S just over a week ago. My first fill up was at 347 miles driven. 300 was Highway, 47 miles was City. Calculated MPG was 34.64 for first tank. | |
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Replying to: dantz (Jun 23, 2009 12:33 pm) My mileage has slowly increased as I put more miles on, now around 18000 and haven't see a tank fill in some time less than 45 mpg. 2007 civic with manual, probably around 95% or more highway and lots of 55 mph roads. At interstate speeds mileage will drop to 40 mpg and even less with headwinds.
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>"I have a scan gauge and tried many times to determine the effect of the AC on mileage. Instantaneous mileage jumps around to much to make any comparison with AC on or off." Using the Scan Gauge also, in our 03 4wd Pilot.. On a flat road or even going up a slight grade, with cruise on, the instant mpg will hold reasonably steady enough to turn the AC button on for a few seconds, and off for a few seconds. Mileage when the AC is turned on will drop "instantly" by 2-3 mpg. Then turning it off will increase the mileage by the same amount. A 4 mile trip I take several times a week will typically return 2-3 mpg better with the AC off. That is starting with a cold engine. This spring, a 42 mile one way trip, I take often, yielded right at 27 mpg both directions. No AC. Cruise set at 58 mph for the X-Way portion. Now that the temps are in the 90s and AC is on most of the time, the mileage has dropped to more in the 24-25 mpg range, at the same speeds. . I can keep it more in the 25 mpg range by "re circulating" the inside air and turning the AC on and off by hand. Problem with Honda's Climate control is that if the AC is on, the compressor runs all the time. When the correct temperature is reached, the computer just adds heat to the system to maintain the correct temp. But the compressor continues to run. Without Climate Control, and the "AC ON" condition, the Compressor continues to run and it just gets colder and colder. The driver can add some heat or turn the AC off. Would seem to me to be better if the Compressor would turn on and off depending on whether or not more cooling is needed. Kip
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