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-   -   use of higher octane gasoline (https://www.gtcarz.com/honda-mailing-list-327/use-higher-octane-gasoline-276084/)

Dave Kelsen 09-21-2003 09:06 AM

Re: use of higher octane gasoline
 
On 9/20/2003 5:23 PM Elmo P. Shagnasty spake these words of knowledge:

> In article <bki9o7$2vj$1@news.onet.pl>,
> "Pete" <escape2music@hotmail.com> wrote:
>
>> > And even if this were true, it would be true IF and ONLY IF the engine
>> > control computer were designed specifically for this situation.

>>
>> It may be smart enough to adjust timing - many ECUs can do it these days.

>
> But generally not in family haulers.


Honda says that my 2001 Odyssey (a family hauler if there ever was one)
produces more horsepower with 93 octane fuel. I can't swear what the
numbers are, but my recollection is 210 or 215 vs. 205 with 87 octane.
This may very well be a feature of the 2003 Accord V6 - my 2003 Accord
is the 4-banger, and I never saw reference to this.

RFT!!!
Dave Kelsen
--
"He loves nature in spite of what it did to him." - Forrest Tucker


Elmo P. Shagnasty 09-21-2003 10:14 AM

Re: use of higher octane gasoline
 
In article <gnhbb.20735$Od.740774@twister.tampabay.rr.com>,
Dave Kelsen <kelsen@elmore.rr.com> wrote:

> > But generally not in family haulers.

>
> Honda says that my 2001 Odyssey (a family hauler if there ever was one)
> produces more horsepower with 93 octane fuel.


Right. I said generally, and notice how for 2002 they flat out changed
everything.

Also notice that they documented the power increase for those original
engines, but there's absolutely no such documentation for the 03 Accord.

Somebody just wants to justify his unnecessary spending of more money on
higher octane fuel, that's all.


Elmo P. Shagnasty 09-21-2003 10:14 AM

Re: use of higher octane gasoline
 
In article <gnhbb.20735$Od.740774@twister.tampabay.rr.com>,
Dave Kelsen <kelsen@elmore.rr.com> wrote:

> > But generally not in family haulers.

>
> Honda says that my 2001 Odyssey (a family hauler if there ever was one)
> produces more horsepower with 93 octane fuel.


Right. I said generally, and notice how for 2002 they flat out changed
everything.

Also notice that they documented the power increase for those original
engines, but there's absolutely no such documentation for the 03 Accord.

Somebody just wants to justify his unnecessary spending of more money on
higher octane fuel, that's all.


Elmo P. Shagnasty 09-21-2003 10:14 AM

Re: use of higher octane gasoline
 
In article <gnhbb.20735$Od.740774@twister.tampabay.rr.com>,
Dave Kelsen <kelsen@elmore.rr.com> wrote:

> > But generally not in family haulers.

>
> Honda says that my 2001 Odyssey (a family hauler if there ever was one)
> produces more horsepower with 93 octane fuel.


Right. I said generally, and notice how for 2002 they flat out changed
everything.

Also notice that they documented the power increase for those original
engines, but there's absolutely no such documentation for the 03 Accord.

Somebody just wants to justify his unnecessary spending of more money on
higher octane fuel, that's all.


Jafir Elkurd 09-21-2003 10:35 AM

Re: use of higher octane gasoline
 
They don't advance it.... many cars with complete computer controlled
advance (but I'm not saying Honda here) are set a little high to start with,
and then the computer retards it based on info from the knock sensor... so
if you run higher octane, you'll get slightly higher advance.

"Pahsons - Somnolent" <pahsonspam@juno.com> wrote in message
news:Xns93FD3B5B2E245wyrmshutup@130.133.1.4...
> Falling asleep through Jafir Elkurd's post...
>
> > Increasing the advance of the ignition timing could also necessitate
> > higher octane fuel.

>
> I know they can retard advance, but I haven't heard of a brand that
> advances it. Unless you can name one :O
>
> --
> "If you can't change a tire, you're not allowed to have a beard. It's the
> most basic part of a car: If you don't know that much about a car, you
> really shouldn't be driving, should you?" - Jimmy Kimmel
> http://www.cafeshops.com/creexul.2534632
> Owner of the following: Henry Cotter - A.G.F.F., Eric Dreher AND mark
> digital© - A.A.T., wiru the tired - A.F.D., and that Gino guy who keeps
> chaning his nick on A.A.Acura.
> http://acfsliars.0catch.com/todd




Jafir Elkurd 09-21-2003 10:35 AM

Re: use of higher octane gasoline
 
They don't advance it.... many cars with complete computer controlled
advance (but I'm not saying Honda here) are set a little high to start with,
and then the computer retards it based on info from the knock sensor... so
if you run higher octane, you'll get slightly higher advance.

"Pahsons - Somnolent" <pahsonspam@juno.com> wrote in message
news:Xns93FD3B5B2E245wyrmshutup@130.133.1.4...
> Falling asleep through Jafir Elkurd's post...
>
> > Increasing the advance of the ignition timing could also necessitate
> > higher octane fuel.

>
> I know they can retard advance, but I haven't heard of a brand that
> advances it. Unless you can name one :O
>
> --
> "If you can't change a tire, you're not allowed to have a beard. It's the
> most basic part of a car: If you don't know that much about a car, you
> really shouldn't be driving, should you?" - Jimmy Kimmel
> http://www.cafeshops.com/creexul.2534632
> Owner of the following: Henry Cotter - A.G.F.F., Eric Dreher AND mark
> digital© - A.A.T., wiru the tired - A.F.D., and that Gino guy who keeps
> chaning his nick on A.A.Acura.
> http://acfsliars.0catch.com/todd




Jafir Elkurd 09-21-2003 10:35 AM

Re: use of higher octane gasoline
 
They don't advance it.... many cars with complete computer controlled
advance (but I'm not saying Honda here) are set a little high to start with,
and then the computer retards it based on info from the knock sensor... so
if you run higher octane, you'll get slightly higher advance.

"Pahsons - Somnolent" <pahsonspam@juno.com> wrote in message
news:Xns93FD3B5B2E245wyrmshutup@130.133.1.4...
> Falling asleep through Jafir Elkurd's post...
>
> > Increasing the advance of the ignition timing could also necessitate
> > higher octane fuel.

>
> I know they can retard advance, but I haven't heard of a brand that
> advances it. Unless you can name one :O
>
> --
> "If you can't change a tire, you're not allowed to have a beard. It's the
> most basic part of a car: If you don't know that much about a car, you
> really shouldn't be driving, should you?" - Jimmy Kimmel
> http://www.cafeshops.com/creexul.2534632
> Owner of the following: Henry Cotter - A.G.F.F., Eric Dreher AND mark
> digital© - A.A.T., wiru the tired - A.F.D., and that Gino guy who keeps
> chaning his nick on A.A.Acura.
> http://acfsliars.0catch.com/todd




Steve Beaman 09-21-2003 11:49 AM

Re: use of higher octane gasoline
 
On 21 Sep 2003 09:54:09 GMT, "Pahsons - Somnolent"
<pahsonspam@juno.com> wrote:

>Falling asleep through Jafir Elkurd's post...
>
>> Increasing the advance of the ignition timing could also necessitate
>> higher octane fuel.

>
>I know they can retard advance, but I haven't heard of a brand that
>advances it. Unless you can name one :O


On Honda's with coil over plug ignition the computer uses a TDC sensor
and a Knock sensor to actively adjust timing for the best
performance/economy at any given time. Honda's VTEC system uses a
computer controlled third intake rocker/cam lobe to increase the fuel
flow to the cylinder.

Steve Beaman 09-21-2003 11:49 AM

Re: use of higher octane gasoline
 
On 21 Sep 2003 09:54:09 GMT, "Pahsons - Somnolent"
<pahsonspam@juno.com> wrote:

>Falling asleep through Jafir Elkurd's post...
>
>> Increasing the advance of the ignition timing could also necessitate
>> higher octane fuel.

>
>I know they can retard advance, but I haven't heard of a brand that
>advances it. Unless you can name one :O


On Honda's with coil over plug ignition the computer uses a TDC sensor
and a Knock sensor to actively adjust timing for the best
performance/economy at any given time. Honda's VTEC system uses a
computer controlled third intake rocker/cam lobe to increase the fuel
flow to the cylinder.

Steve Beaman 09-21-2003 11:49 AM

Re: use of higher octane gasoline
 
On 21 Sep 2003 09:54:09 GMT, "Pahsons - Somnolent"
<pahsonspam@juno.com> wrote:

>Falling asleep through Jafir Elkurd's post...
>
>> Increasing the advance of the ignition timing could also necessitate
>> higher octane fuel.

>
>I know they can retard advance, but I haven't heard of a brand that
>advances it. Unless you can name one :O


On Honda's with coil over plug ignition the computer uses a TDC sensor
and a Knock sensor to actively adjust timing for the best
performance/economy at any given time. Honda's VTEC system uses a
computer controlled third intake rocker/cam lobe to increase the fuel
flow to the cylinder.

Trebor Burns 09-21-2003 03:41 PM

Re: use of higher octane gasoline
 
Bottom line: How many miles per DOLLAR do you get with different octane
gasolines?

--
Bob Burns
Mill Hall PA



"Elmo P. Shagnasty" <elmop@nastydesigns.com> wrote in message
news:caibb.63159$s9.16452@fe04.atl2.webusenet.com. ..
> In article <gnhbb.20735$Od.740774@twister.tampabay.rr.com>,
> Dave Kelsen <kelsen@elmore.rr.com> wrote:
>
> > > But generally not in family haulers.

> >
> > Honda says that my 2001 Odyssey (a family hauler if there ever was one)
> > produces more horsepower with 93 octane fuel.

>
> Right. I said generally, and notice how for 2002 they flat out changed
> everything.
>
> Also notice that they documented the power increase for those original
> engines, but there's absolutely no such documentation for the 03 Accord.
>
> Somebody just wants to justify his unnecessary spending of more money on
> higher octane fuel, that's all.
>




Trebor Burns 09-21-2003 03:41 PM

Re: use of higher octane gasoline
 
Bottom line: How many miles per DOLLAR do you get with different octane
gasolines?

--
Bob Burns
Mill Hall PA



"Elmo P. Shagnasty" <elmop@nastydesigns.com> wrote in message
news:caibb.63159$s9.16452@fe04.atl2.webusenet.com. ..
> In article <gnhbb.20735$Od.740774@twister.tampabay.rr.com>,
> Dave Kelsen <kelsen@elmore.rr.com> wrote:
>
> > > But generally not in family haulers.

> >
> > Honda says that my 2001 Odyssey (a family hauler if there ever was one)
> > produces more horsepower with 93 octane fuel.

>
> Right. I said generally, and notice how for 2002 they flat out changed
> everything.
>
> Also notice that they documented the power increase for those original
> engines, but there's absolutely no such documentation for the 03 Accord.
>
> Somebody just wants to justify his unnecessary spending of more money on
> higher octane fuel, that's all.
>




Trebor Burns 09-21-2003 03:41 PM

Re: use of higher octane gasoline
 
Bottom line: How many miles per DOLLAR do you get with different octane
gasolines?

--
Bob Burns
Mill Hall PA



"Elmo P. Shagnasty" <elmop@nastydesigns.com> wrote in message
news:caibb.63159$s9.16452@fe04.atl2.webusenet.com. ..
> In article <gnhbb.20735$Od.740774@twister.tampabay.rr.com>,
> Dave Kelsen <kelsen@elmore.rr.com> wrote:
>
> > > But generally not in family haulers.

> >
> > Honda says that my 2001 Odyssey (a family hauler if there ever was one)
> > produces more horsepower with 93 octane fuel.

>
> Right. I said generally, and notice how for 2002 they flat out changed
> everything.
>
> Also notice that they documented the power increase for those original
> engines, but there's absolutely no such documentation for the 03 Accord.
>
> Somebody just wants to justify his unnecessary spending of more money on
> higher octane fuel, that's all.
>




Rustic 09-21-2003 06:35 PM

Re: use of higher octane gasoline
 
"stewart" <stewart.tom@acd.net> wrote in
news:bkk3r4$2jig9$1@ID-96483.news.uni-berlin.de:

> The source may be the USA Today review, 8-2-02: "(Charles) Baker (head
> of Accord development) claims that - based on what we'll call field
> research by him and Honda V-6 engineer Yasuaki Asaki - the
> four-cylinder Accord, rated 160 horsepower, accelerates head-to-head
> with the four-cylinder Altima, rated 175 hp. And the 240-hp Accord V-6
> outsprints the 240-hp Altima V-6, he says....The Accord V-6 ratings
> assume regular-grade fuel, and Honda will market it as a regular-fuel
> engine. But - pssst - 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/...1-accord_x.htm


Now i'm about to be dissapointed...why is this engineer comparing the
accord with the Altima, isn't the accord suposed to be compared to the
maxima? or is the maxima engine now superior to the accord's?

Rustic 09-21-2003 06:35 PM

Re: use of higher octane gasoline
 
"stewart" <stewart.tom@acd.net> wrote in
news:bkk3r4$2jig9$1@ID-96483.news.uni-berlin.de:

> The source may be the USA Today review, 8-2-02: "(Charles) Baker (head
> of Accord development) claims that - based on what we'll call field
> research by him and Honda V-6 engineer Yasuaki Asaki - the
> four-cylinder Accord, rated 160 horsepower, accelerates head-to-head
> with the four-cylinder Altima, rated 175 hp. And the 240-hp Accord V-6
> outsprints the 240-hp Altima V-6, he says....The Accord V-6 ratings
> assume regular-grade fuel, and Honda will market it as a regular-fuel
> engine. But - pssst - 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/...1-accord_x.htm


Now i'm about to be dissapointed...why is this engineer comparing the
accord with the Altima, isn't the accord suposed to be compared to the
maxima? or is the maxima engine now superior to the accord's?


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