- #1096 of 2058
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mpg reports NOT filter debates please
by k5ldb
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Aug 15, 2007 (5:19 am)
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I just brought home my new 07 LX sedan yesterday. It is tango red pearl which I'm told is good for at least one extra mpg due to color superiority.  Anyway, I found this forum and dropped back to about message 650 to read all about mileage and found the majority of posts are arguments over filtration. Could we please have some more actual mpg reports? Thanks, and I look forward to posting my own when I've driven enough to make one.
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- #1097 of 2058
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Re: mpg reports NOT filter debates please [k5ldb]
by jefferyg
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Aug 15, 2007 (11:06 am)
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Replying to: k5ldb (Aug 15, 2007 5:19 am)
Congrats on the new Civic. My 07 EX is also tango red pearl, but I don't know that the color is going to get you any extra mpg. Did you get the 5-speed or the automatic? I was surprised that the numbers for each were almost identical - that used to never be the case. I have the auto and so far it's given me a myriad of different mpg readings. Keep us posted.
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- #1098 of 2058
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Re: mpg reports NOT filter debates please [jefferyg]
by k5ldb
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Aug 16, 2007 (7:52 am)
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Replying to: jefferyg (Aug 15, 2007 11:06 am)
I don't really believe the color affects mpg although I guess one could debate if the higher temp underhood from a black car absorbing and white reflecting sun heat is enough to affect mpg. I know you can put your hand on a white car at noon in July and can't touch a black one but don't know if that's enough to affect mpg due to higher intake air temp.
I filled mine yesterday to reset the trip odometer and get a baseline. The dealer reset the trip when they filled it prior to delivery but I don't know just how they filled it. Based on mi/odo it got about 33.2 in mixed use but that was only on 4.5 gallons so not enough to be very accurate.
My usual system is to use the A odo on every fill and the B to accumulate a half dozen or so and then calculate an overall figure. I find that more accurate than the individual calculations.
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- #1099 of 2058
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Re: mpg reports NOT filter debates please [k5ldb]
by ruking1
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Aug 16, 2007 (8:00 am)
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Replying to: k5ldb (Aug 16, 2007 7:52 am)
Well more directly, what really happens is the A/C is (user) set to work and works harder in a darker car than in a lighter car. Whether it converts to hard data or not, it would need a side by side test and then the sample size would probably be too small.
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- #1100 of 2058
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Re: mpg reports NOT filter debates please [k5ldb]
by ras314
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Aug 16, 2007 (11:03 am)
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Replying to: k5ldb (Aug 15, 2007 5:19 am)
Finally have enough miles on my manual 2007 Civic to get a pretty good idea of mileage. Ignoring the first tank from the dealer it has averaged about 43.6 mpg over 1110 miles, 650 hwy at 55 to 65 mph and 460 miles of short (15 mi round trips) mostly at slow speeds but few stop signs. Lowest tank was 42.7, highest 45.9.
I think the 45.9 was a direct result of watching the ScanGauge II. I'm still trying to find the "optimum" hwy speed, so far it looks to be quite low.
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- #1101 of 2058
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Re: mpg reports NOT filter debates please [ras314]
by blufz1
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Aug 16, 2007 (12:01 pm)
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Replying to: ras314 (Aug 16, 2007 11:03 am)
Don't need a ScanGauge. The best mileage is obtained in top gear at the slowest speed you can go, 40-45. Don't lug the engine! It's just not safe to go that slow on the highway.
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- #1102 of 2058
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Re: mpg reports NOT filter debates please [blufz1]
by ras314
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Aug 16, 2007 (12:44 pm)
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Replying to: blufz1 (Aug 16, 2007 12:01 pm)
Agree that 40-45 in 5'th looks best on level road and no head wind, otherwise not enough rpm. This is a surprise to me.
Any idea of the mileage difference between 55, 65 and 75? I'm getting a stupid urge to take a trip somewhere just to find out. 
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- #1103 of 2058
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Re: mpg reports NOT filter debates please [ras314]
by blufz1
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Aug 16, 2007 (1:33 pm)
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Replying to: ras314 (Aug 16, 2007 12:44 pm)
Be careful don't go too slow!! I would estimate 10% 55 to 65. 13% 65-75. Just guessing. It's the wind resistance.
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- #1104 of 2058
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Re: mpg reports NOT filter debates please [blufz1]
by jefferyg
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Aug 16, 2007 (9:20 pm)
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Replying to: blufz1 (Aug 16, 2007 1:33 pm)
I'll guarantee you if you slow it down you'll do MUCH better. I've already observed that. I also think the A/C is a really big factor. When I got the outrageous mileage in my new Civic it was on a much cooler day at leisurely speeds (nothing above 70).
As I've said before, I can't wait until we get some cooler weather to see what kind of difference running with no A/C makes. With the 100+ temps we've been having over the past week and a half, I've had to run the A/C on Max almost constantly.
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- #1105 of 2058
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Re: mpg reports NOT filter debates please [jefferyg]
by blufz1
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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.
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