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Honda Accord Real World MPG

2672 messages,  Last post on Nov 23, 2009 at 2:36 PM

You are in the Honda Accord Forum. Your Hosts are pat & karens

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


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#2469 of 2672
Re: Lousy mileage on '08 EX 4-AT [imscf] by jhinsc
Jan 21, 2009 (4:51 am)
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Replying to: imscf (Jan 20, 2009 3:39 pm)

Driving in NYC, you spend a lot of time getting 0 mpg while at stoplights or idling. You probably already know this, but when cruising on parkways, make sure you're not in D3, which is easy to do. It takes a steady right foot to get good mpg. If you're constantly moving the gas pedal up and down, don't expect good mpg's.
#2470 of 2672
Re: Lousy mileage on '08 EX 4-AT [imscf] by kipk
Jan 21, 2009 (4:59 am)
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Replying to: imscf (Jan 20, 2009 3:39 pm)

http://www.fueleconomy.gov/mpg/MPG.do?action=browseList2&make=Honda&model=Accord-
 
Recently took a trip in our 4450#, 4WD, 3,5 liter engine, automatic 03 Pilot, that pushes a lot of air and has an EPA rating of 15/20.
Trip consisted of 20+% local/backroads with some traffic lights, and the rest X-Way.
 
The trip going netted 28.2 mpg. Return trip was 26.7 mpg.
X-Way speed going was 55mph. X-way speed returning was 60. Back roads were posted limits+ 5mph.
 
The aftermarket gage that plugs into the car's computer connection was within 1/10 of a MPG of my calculator figures for the trip, so I have no reason to doubt any of it's instant MPG readings.
 
Flat road readings at 55 yielded 31-35 mpg. At 60 they were 28-33 mpg. I've made that same trip with the X-Way portion at various speeds.
 
70 mph = 22-23 mpg, 80= 18mpg.
 
Some of the Edmund Accord posters claim 36 mpg Hyway, under ideal driving condition. I believe them because we consistantly get 29-31 Hyway on my wife's 03, 4wd automatic CR=V at 60 mph. Locally it delivers 21-22 with her driving, and 25+/-- with me driving.
 
My 6.5 mile commute to work in the Pilot averages 18-19 mpg. when the temperature is above 50 degrees. Last Saturday the temp was in the low 20s and the MPG was 15 +/- .
 
Add in some heavy traffic and a ton of "RED" lights and it would not surprise me to see it drop into single digits.
 
Temperature, traffic conditions, and the weight of the driver's food contribute heavily on mileage.
 
Kip
#2471 of 2672
Re: Lousy mileage on '08 EX 4-AT [jhinsc] by packer3
Jan 21, 2009 (4:47 pm)
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Replying to: jhinsc (Jan 21, 2009 4:51 am)

I remember reading somewhere ( might have been in the Honda manual) that in heavy bumper traffic you should keep it in D3 so the gears dont change often and the city mileage should be better. I could be wrong.
#2472 of 2672
Re: Lousy mileage on '08 EX 4-AT [packer3] by thegraduate
Jan 21, 2009 (8:06 pm)
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Replying to: packer3 (Jan 21, 2009 4:47 pm)

Not sure where you read it, but it doesn't make sense. If you get to speeds high enough to hit 4th gear, the car should go into it and use less fuel. You prevent that if you leave it in D3.
#2473 of 2672
Re: Lousy mileage on '08 EX 4-AT [thegraduate] by tankbeans
Jan 21, 2009 (8:12 pm)
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Replying to: thegraduate (Jan 21, 2009 8:06 pm)

I think I remember seeing something like that, but only if it's thick bumper to bumper, traffic where you don't get above 45ish, not just city driving in general. I think the rationale behind that was to keep the transmission from cycling between 3 and 4. I don't, however, recall it having anything to do with improving mileage.
#2474 of 2672
Re: Lousy mileage on '08 EX 4-AT [tankbeans] by thegraduate
Jan 21, 2009 (8:21 pm)
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Replying to: tankbeans (Jan 21, 2009 8:12 pm)

The transmission has something to prevent hunting, especially on hills, called Grade Logic Control. At any point if the transmission senses it'll be in that hunting situation, or if you need engine braking, the car will not go beyond 3rd gear, sometimes downshifting all the way from 5th to do so.
 
Leave it in D, you won't be disappointed.
#2475 of 2672
Re: Lousy mileage on '08 EX 4-AT [thegraduate] by tankbeans
Jan 21, 2009 (8:28 pm)
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Replying to: thegraduate (Jan 21, 2009 8:21 pm)

I always do. Someday I want a 5 speed, 3 pedals and a stick, but right now I only have 2 pedals so I don't futz around.
 
Although I would encourage you to grab the manual and peek through it. I'm sure something is hidden in there. I know about grade logic and all that, but I also have this tendency to just read my manual when I'm bored. I need a life.
 
I've read my mom's, my dad's, my brothers' and I think my friends. Pretty boring considering they all say almost the same thing.
 
I know the bit about hunting for gears is in there.
 
Well it's late, so I think I'm going to pass out until tomorrow.
#2476 of 2672
Kind of quiet in here. by tankbeans
Feb 06, 2009 (10:06 pm)
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Hey all it's gotten quiet in here. I thought I'd post some more numbers. I just filled up from just above E, I ran a can of Sea-Foam through it to clean things up a little. I got just over 22 mpg. Which sucks, but it's still winter so it's to be expected. My rolling average since March is just above 25 or 26. Been trying to keep my speed in check, but it gets away from me sometimes.
#2477 of 2672
..in the interests of silence.......... by ezshift5
Feb 07, 2009 (8:25 am)
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Replying to: tankbeans (Feb 06, 2009 10:06 pm)

...my January fuel numbers are provided:
 
1514 miles of mixed driving around the north state. 54.103 gallons of 87.
 
Close enough to 28 MPG for this sailor..............
 
..best, ez....
#2478 of 2672
Re: ..in the interests of silence.......... [ezshift5] by tankbeans
Feb 07, 2009 (4:37 pm)
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Replying to: ezshift5 (Feb 07, 2009 8:25 am)

I wish I could get numbers that high in the winter.
 
I just put new tires on my car and I'll have to see if it will affect my mileage or not. Hopefully not, but who knows. If it makes a difference to anyone I just put on Bridgestone Potenzas and found out that my alignment was off.
 
Spec is -0.08 to 0.08 mine, on the passenger front, was 0.25. Don't know quite what the numbers mean, but I know that it had been pulling a lot at speeds above 60.

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