- #1668 of 2672
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Re: best so far [ljgbjg]
by malmouza
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Apr 09, 2008 (5:11 am)
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Replying to: ljgbjg (Apr 09, 2008 1:45 am)
I own 2008 accord 4cyl 5speed MT (300 miles on the odo). and it does not matter what you do, you will always get the same 25 MPG, and I am considering myself as a hypermiles expert, this might be due to the engine parts are still tight in the engine, and the manufacturer use a heavy oil grade to minimize the noise and the friction for the first 1000s miles. Again, this is One big car, that weight a lot, and physics talks. In stop and go traffic, I don’t think anybody will get better than 20 MPG. On a new engine.
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- #1669 of 2672
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Re: best so far [malmouza]
by ljgbjg
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Apr 09, 2008 (5:23 am)
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Replying to: malmouza (Apr 09, 2008 5:11 am)
I agree with you - this is one big car. I wonder what the CD is compeared to the 7th Generation? The front end appears to be boxier and with greater exposure than a 2007 which had the sloping hoodline. A greater CD combined with the heavier weight - the V6 is 300 pounds heavier than last year (so much for the extra 24 HP) will = lower fuel economy, REGARDLESS of the VCM. You are doing well - I am reading here about EXL models with the 190 HP I4 getting 17!.
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- #1670 of 2672
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Re: best so far [ljgbjg]
by dpmeersman
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Apr 09, 2008 (6:05 am)
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Replying to: ljgbjg (Apr 09, 2008 5:23 am)
Taken from Motor Trend article comparing 07 Camry to 08 Accord Sedan:
No projections are needed in the wind tunnel, though, as the Accord has already bettered its performance due to a drop in the coefficient of drag from 0.34 to 0.31.
I'd like to know how they accomplished that as the frontal area does appear to be more substantial than the gen 7's.
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- #1671 of 2672
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Re: best so far [ljgbjg]
by malmouza
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Apr 09, 2008 (6:10 am)
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Replying to: ljgbjg (Apr 09, 2008 5:23 am)
I think the VCM is just hype from Honda in order to sell the V6 engine. The way the VCM work; it shuts down the fuel injectors for a specific cylinders, and fill the cylinder with air instead. According to Honda this system will result in an increase in MPG by 1 or 2 miles. I do not agree, with Honda. The fact that the cylinder is still moving up and down, result in the other active cylinders to bear the burden of the weight of the inactive cylinders. This almost cancel the effect of saving couple drops of fuel every x RPM. If Honda did use a transmission between each 3 cylinders bank, the result will be real 4 or 5 MPG increase; but the problem this approach will cost Honda more money; by consequence they need to raise their price by at least $1200 for the transmission. On my wife’s 2007 Honda Odyssey EX. No VCM, I managed 25MPG on a highway and 21MPG on avg. 25% city / 75 % highway. I heard people with the VCM are getting 17 MPG on avg. This proves my point. This is one of the reason that Honda is going to get ride of the VCM technology, and replace it with Diesel. The problem you’ll have to paye a hefty premium to get that car, plus the diesel price is $1 more than the gas for one gallon. You do the math, and you’ll see that it’s better to buy a good 4 cylinder car that suite your needs.
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- #1672 of 2672
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Re: best so far [malmouza]
by ljgbjg
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Apr 09, 2008 (6:46 am)
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Replying to: malmouza (Apr 09, 2008 6:10 am)
"You do the math, and you’ll see that it’s better to buy a good 4 cylinder car that suite your needs."
Or just get a car from a manufacturer that does not mind is engines "loafing" along.
Check out some V8's from GM - at highway speeds they cruise at 2000 RPM at 80MPH because of the overdrive. Result? 28-29 MPH from a V8 - and no VCM!
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- #1673 of 2672
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Re: best so far [malmouza]
by donegal
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Apr 09, 2008 (6:51 am)
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Replying to: malmouza (Apr 09, 2008 6:10 am)
My V6 with VCM just turned 1,200 miles. I am averaging with 60% highway and 40% other, 24.5 mpg. The highest I have seen on a 150 mile highway trip was 28.8. When I traded in my 2005 V6 without VCM I would average about 31 mpg. highway. That 31 mpg was pretty consistent over the three years that I owned the 2005.
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- #1674 of 2672
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Re: best so far [donegal]
by ljgbjg
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Apr 09, 2008 (6:57 am)
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Replying to: donegal (Apr 09, 2008 6:51 am)
Yeah - I cannot pinpoint a particular reason - VCM, increased weight, drive by wire, whatever, but it pretty clearly seems that the the verdict for the 2008's is that they are not as economical as the 7th generation, regardless of which engine you are talking about. Our 2005 V6 Coupe with AT consistently got 29-30 highway and I am not the slowest driver around. That was at 75-80 MPH.
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- #1675 of 2672
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hi
by gleen6191
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Apr 09, 2008 (7:03 am)
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- #1676 of 2672
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First year jitters?
by tankbeans
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Apr 09, 2008 (7:26 am)
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Take this with a grain of sand, but I believe somebody else has said it. Doesn't the first year of a generation always have kinks that need to be worked out? I don't own an 08, because I can't afford a new car, but I would guess that next year in the 09 model Honda will be changing things in response to complaints they've doubtlessly received. Also, winter is almost over and everybody who does own one should most likely see an improvement in gas mileage.
New cars shouldn't be released in Fall, especially when they're the first year of a generation. Rather they should be released in Fall so people have a better idea what the mileage will be when the engine is 'broken in'. Then again I'm not well-versed in the mechanical side of things. The 09 should be an improvement over what people are saying is wrong with the 08.
I've heard that my model an 03 was plagued with problems when it was released too, but I haven't heard too much from 04 and up. I just started driving 4 years ago so I would know all the specifics.
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- #1677 of 2672
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2008 v6 MPG
by fldonahue
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Apr 09, 2008 (7:29 am)
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Just my second post on this board - thought I'd revisit. I posted previously regarding the V6 VCM issue. Still no issues with the VCM - I really wonder if all the fuss is about transmission shifts - as they can be very noticeable - but you can see the tach changes as the shifts occur. I swear there's no feeling at all from the VCM. Last tank this AM got me 23.42 mpg - my best so far. Got 21 even last tank, and 22-23 the other tanks. My tank this morning cost me just under $60, which would have cost $106 for my former Chevy Tahoe, so I'm a happy camper. My goal was to double my gas mileage, and I'm looking like I'll be short of that, but I love the V6!
Happy driving.
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