What's the real fuel economy for V6 Accord?

I bought a 4-cyl because of local gas prices (double than US). My 4-iVTEC
gives me between 10-11.5 km per liter... closer to 10.

What's your experience with V6?

(I realize that US drivers usually get more highway driving than down here
in Chile)

-Indirecto

 

My 5 speed standard iVtec gets 30 Mpg.

 

Quite good actually. I wasn't able to exactly calculate my mileage
because of a little gas station problem after my first long trip, but
it was 30MPG or better with 4500mi on the car, 6 speed.

 

I get 23 - 24mpg in mixed (50-50) highway-local driving . . . the best
I've ever done on a trip is 29mpg . . .


George

 

I get anywhere from 22 to 28 mpg on my V6 Accord depending on the driving
mix.

John

 

I wonder if octane may make a difference here. We know that all
retail gasoline varieties are isocaloric, but Honda states that use of
high-octane gasoline in the V6 may produce 5-10 more HP than regular
unleaded (I presume by allowing more efficient ignition timing). So
more power could mean that it takes a little less 93-octane fuel than
87-octane to produce the same RPM and torque.
To that end, when my 2003 V6 automatic had about 3,000 miles on it, I
got 33 mpg on hilly/mountainous I-80 across northern Pennsylvania
while burning 93-octane gas. Since then, I've use 87-octane, and even
with the car better broken in and on flatter terrain in Ohio, I get
only about 29-30 mpg on the Interstate in the same weather conditions.
Ron

 

George Earl said...

I'm seeing the same numbers with mine.
29 mpg is about the upper limit.


Casey

 

Mixed driving I get 26 - 27.5. Seems like driving faster on the
interstate get's better mileage.

 

Where does Honda state the use of higher octane gasoline may produce higher
horsepower???

 

it was in an interview with some honda engineers. supposedly only works on
cetrain V6s?

 

Saucer Man said...

It only applies to the 240 hp V6 and it's not in official publications.
However, Charlie Baker (project leader for the new Accord) and Yasuaki
Aasaki (chief engineer for V6) are quoted in interviews as saying just
that:

"The Nissan Altima, which takes premium fuel for its V6, has been
selling like crazy, based largely on its hot acceleration, and Baker
says the Accord can just about match it. However, he adds with a smile,
if you run premium fuel in your Accord you'll get more horsepower, and
he's willing to bet it will be an Altima killer"

http://www.nctd.com/review-drive.cfm?ReviewID=1210

"although Accord's will jump 10 horsepower or so on premium, V-6's
chief engineer says"

"The Accord V-6 ratings assume regular-grade fuel, and Honda will
market it as a regular-fuel engine. But =3F pssst =3F it's good for another
10 hp and 10-plus lbs.-ft. on premium, acknowledges V-6 engineer
Asaki."

http://www.usatoday.com/money/autos...01-accord_x.htm



Casey

 

Hmm... 11 km/l is about 26mpg... highway. Looks like your V6s are getting
better mileage than my I4!

I tend to drive it around 120 km/h highway... about 75mph. half that city
driving.

Do you think it might be my country´s gasoline quality? Maybe putting
better octane gas might improve its efficiency? Or perhaps because Chile is
a (very) hilly country?

-Indirecto

 

I'm not a Honda owner but it really wouldn't surprise me. Many engines
these days use input from a knock sensor to adjust the timing for
maximum efficiency. For instance, VW manuals say not to use less than
87 octane, but also to use 91 or better for maximum performance.