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#31
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2005 Honda Civic LX gas mileage
Kent Finnell wrote:
> First of all, it's NOT a new car, it's not even a Honda. However I've owned > 3 Honda, among other cars. I've filled them up all the same way, other wise > you cannot get an accurate mileage calculation. ---------------------- My gas station gives me a receipt with the VOLUME of fuel printed right on it. I can fill my tank half-full and be way more accurate than somebody who goes by 'tankfull' divided by mileage. Tankfull isn't a measurement of any credibility. ie: my cousin got a big dent in his 'tank' now his gas mileage is crappy. --------------------- > The Maker's instructions are for maker's benefit, not necessarily for the > consumers. For what it's worth, I never spill a drop. ------------------- I didn't say you spilled anything, but Honda says you can mess up the EGR system by filling the canister full of liquid fuel. Aside from that you're breaking some FIRE CODE rules, and you could spill a lot of fuel down the municipal sewers or parkade on a hot day. That's why manufacturers are required to tell you not to overfill. ++++++++++ Any firefighters like to help with this point ??? ------------------- > Tell me, Curly, why did you send me private email to bitch at me? If you > want to lecture me, do it in the group. Then I can respond in a manner that > won't make me look some sort of wild man when I tell you to go teach your > grandma to suck eggs. ------------------------ I must have clicked the wrong 'reply' button, sorry. My reply was in the group too. I must have clicked on 'both'. -------------------- > I'll be 65 by the end of the month and I don't need lectures from someone > who calls himself "Curly Q. Links" and is probably 1/3rd my age or less. --------------------- Whatever. I walked in half-way thru the end of the discussion . . . . . just thought you were asking for advise about how to correctly figure out the mileage on a Honda. > Kent Finnell > From the Music City USA |
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#33
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2005 Honda Civic LX gas mileage
cinerama wrote:
> OK. Back to the gas mileage problem I'm having. Here is the list of mpg > for each fillup by date. > > 9/13 - 38.7 > 9/17 - 36.6 > 9/23 - 39.3 > 9/25 - 37.1 > 10/1 - 34.7 > 10/5 - 35.5 > 10/8 - 33.0 > 10/14 - 35.2 > 10/18 - 33.3 > 10/23 - 34.0 > 10/31 - 32.2 > 11/07 - 31.5 > > 3,600 total miles > > My driving is mostly highway, 60 mph, slow starts and stops.etc. The > mpg should be higher. > you know that gas has a seasonal fluctuation of calorific value don't you? this translates to lower mpg's as calorific value drops for the winter. add to that the fact that the current ethanol formulations reduce calorific value still further and suddenly you think the car's not working right. reality is, the gasoline market's not working right. |
#34
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2005 Honda Civic LX gas mileage
>
> I did say "virtually constant" and you missed a significant factor > (for in-tank pumps in the Honda/Rover cars) which is that the fuel is > sucked into the pump without being replaced by air from the outside > thus reducing the absolute air pressure in the tank. You can verify this > by listening for the 'whoosh' of air into the tank when you undo the > tank's filler cap. Intake 'whoosh'? I had the exact opposite experience, couple decades ago, when I used to work as a gas attendant. I went to open the gas cap, the owner of the vehicle is standing right beside me. As soon as I open the tank, the remaining fuel burst's out and totally drenches me in gas. The owner smirks, and says, "oops, I should have warned you about that". Pars > > From time to time, the depression is great enough to activate the > ingress of air through the filtered vent used as part of the emission > controls. This causes a strange sort of 'groan' from the valve when > the car is stationary and engine is off. > > Since the head at the inlet varies by only a few inches, I doubt that > the difference in electrical load is measurable. > > > -- > Graham W http://www.gcw.org.uk/ PGM-FI page updated, Graphics Tutorial > WIMBORNE http://www.wessex-astro-society.freeserve.co.uk/ Wessex > Dorset UK Astro Society's Web pages, Info, Meeting Dates, Sites & Maps > Change 'news' to 'sewn' in my Reply address to avoid my spam filter. |
#35
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2005 Honda Civic LX gas mileage
Kent Finnell > wrote:
> including 2 Hondas. I don't believe in the "evening out" theory from the There should be some that are below reality, and some that are above reality. Eventually, the average of the miscalculated averages should be close to true. If you divide the number of miles by the number of gallons that you put in, and that number of gallons is low, because the pump clicked off too early, then the mpg that you think you got that time should be higher than it really is. Occasionally, you can fill the tank the rest of the way, and get a low calculation, but I don't know how you would consistently get a low calculation, and never get a high calculation. If someone is measuring "miles between fillups", where the gallons used on those fillups isn't observed, or "days between fillups", then there is very little connection with reality. Tracking the number of gallons that you put in each time, whether a "fillup" or not, and tracking the mileage, should give correct results. -- --- Clarence A Dold - Hidden Valley (Lake County) CA USA 38.8,-122.5 |
#36
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2005 Honda Civic LX gas mileage
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#37
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2005 Honda Civic LX gas mileage
My all time low was also around 24mpg. Going flat-out from Montreal to
Boston along the i93. I did about 450km before having to gas up, doing 160km/hr up the hills/mountains and about 190km/hr on the straight or downhill. When going up, it was common for the Pick-ups to hog the left lane, so I had to pass them on the right (In 3rd gear and since we were both doing about 160km/hr, they were also probably going flat-out). I made it to Boston from Montreal in less then 3hrs. It was thee nicest drive I've ever had, since it was in October and the leaves were turning and there was next to no traffic (until I got into Boston...what nightmare). Pars 98 Civic Hatch > > > >> including 2 Hondas. I don't believe in the "evening out" theory from the > > > > There should be some that are below reality, and some that are above > > reality. Eventually, the average of the miscalculated averages should be > > close to true. > > yup... you want LOW mileage? try going from LA to laughlin over the > mountain passes in a 1.6l civic CX 5spd with the A/C cranked. i was in > 2rd and floored going up most of the hills, and hitting 100 on the flats > in 4th/5th, but only when someone was in front to "lead the way" > > that got me an all time record breaking low 24mpg. |
#38
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2005 Honda Civic LX gas mileage
OK. It's been a while since I lasted posted to this thread. I think I
may have found something but, it does'nt make any sense. I last reported on 11/7 that I drove 307 miles on 9.7 gallons = 31.5 mpg. I noticed that the tank was very full - a tiny bit of gas spilled out. I guess you would say I topped it off, which everyone says you should not do. Then, I fill up the car on 11/14, 480 miles and 11 gallons = 43.6 mpg. This time I did not top it off. On 11/21, 395 miles it stopped filling at 11.7 gallons so, I decided to top it off but what happened next was very strange. It did not click again till about 12.5 gallons. I thought this was strange as it normally clicks off after 1/10th of a gallon added. I turned on the gas pump again and it went up to 13.7 or 14.? or something - sorry I didn't mark it down. The manual says 13.2 gallons is the tank capacity so when I went over it I thought something was strange about this gas pump. Today, 12/1, 496 miles on 11 gallons. Thinking back to my last fill up, I thought I would top it off and it did what it's supposed to do, click off at each 1/10th of a gallon. I kept adding gas, I had to start and stop at each 1/10th of a gallon added, and go it up to 12 gallons. No gas came out so, I probably could have topped off more but, I stopped. 496 miles at 12 gallons is 41.3 miles to the gallon. Your probably thinking I must have been doing more highway driving when I get the better gas mileage but I'm not. I drive about 15 (13 highway, 2 city) miles each way to work each day. If I need to go to the grocery store or department store, they are only a mile away. On Friday and Monday each week I drive 25 miles each way, mostly highway, to pick up and drop off my children at school (they live with me each weekend). My house is only a mile from any highway entrance. So, as you can see, I drive mostly highway each week. I'm going to keep topping off my tank, checking for when it first clicked off and how much extra gas I pumped in before I stopped, and of course the gas mileage. Roland |
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