Re: Holy crap people are misinformed
 

"Tony Hwang" <dragon40@shaw.ca> writes:
> Chris Aseltine wrote:
>> "Jim" <jkc84xx@optonline(take this and XX out).net> writes:
>>
>>> I agree that the fuel wouldn't combust the same in cold air as it would
>>> in warm so more liquid fuel may slip by causing bad mileage.
>>
>> I never cease to be amazed at the quality physics and chemistry lessons
>> doled out on the various auto groups on a regular basis.
>>
>> Cold air is MORE dense than warm air, and thus, per unit volume, there is
>> more oxygen and more combustion power. By temperature alone, an engine
>> should deliver more power in colder air.
>
> Cold gasoline does not vaporize as well as when warm. Your phyisics
> knowledge is partial as well. When gas does not vaporize, what is cold
> or warm is gonna do? It's common konwledge when cold, gas mileage goes
> down. Actually one reason cold weather gas is blended differently from
> summer time gas. I never cease to be amazed as well.

The original poster wasn't talking about how well the gas vaporized. He
claimed that combustion does not occur as well in colder air, which is
factually incorrect. But, thanks for playing.

Re: Holy crap people are misinformed
 

"Jim Yanik" <jyanik@abuse.gov> writes:

> "Chris Aseltine" <ophidian@newsnation.com> wrote:
>
>> Cold air is MORE dense than warm air, and thus, per unit volume, there
>> is more oxygen and more combustion power. By temperature alone, an
>> engine should deliver more power in colder air.
>
> But that means more fuel will be used per mile.
> More power just means the motor spins up to a given RPM faster.

How about, you can step on the gas pedal less for the same amount of power
output? Less gas pedal = higher fuel mileage. Nice try though.

Re: Holy crap people are misinformed
 

"Jim Yanik" <jyanik@abuse.gov> writes:

> "Chris Aseltine" <ophidian@newsnation.com> wrote:
>
>> Cold air is MORE dense than warm air, and thus, per unit volume, there
>> is more oxygen and more combustion power. By temperature alone, an
>> engine should deliver more power in colder air.
>
> But that means more fuel will be used per mile.
> More power just means the motor spins up to a given RPM faster.

How about, you can step on the gas pedal less for the same amount of power
output? Less gas pedal = higher fuel mileage. Nice try though.

Re: Holy crap people are misinformed
 

"Jim Yanik" <jyanik@abuse.gov> writes:

> "Chris Aseltine" <ophidian@newsnation.com> wrote:
>
>> Cold air is MORE dense than warm air, and thus, per unit volume, there
>> is more oxygen and more combustion power. By temperature alone, an
>> engine should deliver more power in colder air.
>
> But that means more fuel will be used per mile.
> More power just means the motor spins up to a given RPM faster.

How about, you can step on the gas pedal less for the same amount of power
output? Less gas pedal = higher fuel mileage. Nice try though.

Re: Holy crap people are misinformed
 

"Jim Yanik" <jyanik@abuse.gov> writes:

> "Chris Aseltine" <ophidian@newsnation.com> wrote:
>
>> Cold air is MORE dense than warm air, and thus, per unit volume, there
>> is more oxygen and more combustion power. By temperature alone, an
>> engine should deliver more power in colder air.
>
> But that means more fuel will be used per mile.
> More power just means the motor spins up to a given RPM faster.

How about, you can step on the gas pedal less for the same amount of power
output? Less gas pedal = higher fuel mileage. Nice try though.

Re: Holy crap people are misinformed
 

the fast idle valve controled by the ecu spins up and for a short while
mileage is affected

http://community.webtv.net/Robsolo/Robbysmagicpotions

Re: Holy crap people are misinformed
 

the fast idle valve controled by the ecu spins up and for a short while
mileage is affected

http://community.webtv.net/Robsolo/Robbysmagicpotions

Re: Holy crap people are misinformed
 

the fast idle valve controled by the ecu spins up and for a short while
mileage is affected

http://community.webtv.net/Robsolo/Robbysmagicpotions

Re: Holy crap people are misinformed
 

the fast idle valve controled by the ecu spins up and for a short while
mileage is affected

http://community.webtv.net/Robsolo/Robbysmagicpotions

Re: Holy crap people are misinformed
 

"Chris Aseltine" <ophidian@newsnation.com> wrote in message
news:gBmNb.55562$nt4.84825@attbi_s51...
> >>> I agree that the fuel wouldn't combust the same in cold air as it
would
> >>> in warm so more liquid fuel may slip by causing bad mileage.

> The original poster wasn't talking about how well the gas vaporized. He
> claimed that combustion does not occur as well in colder air, which is
> factually incorrect. But, thanks for playing.

Perhaps he mispoke, and meant a cold engine.
It's going to -33C tonight.
How's *your* mileage?

Btw, what's with the attitude?
Jeez.

Steve
Ottawa

Re: Holy crap people are misinformed
 

"Chris Aseltine" <ophidian@newsnation.com> wrote in message
news:gBmNb.55562$nt4.84825@attbi_s51...
> >>> I agree that the fuel wouldn't combust the same in cold air as it
would
> >>> in warm so more liquid fuel may slip by causing bad mileage.

> The original poster wasn't talking about how well the gas vaporized. He
> claimed that combustion does not occur as well in colder air, which is
> factually incorrect. But, thanks for playing.

Perhaps he mispoke, and meant a cold engine.
It's going to -33C tonight.
How's *your* mileage?

Btw, what's with the attitude?
Jeez.

Steve
Ottawa

Re: Holy crap people are misinformed
 

"Chris Aseltine" <ophidian@newsnation.com> wrote in message
news:gBmNb.55562$nt4.84825@attbi_s51...
> >>> I agree that the fuel wouldn't combust the same in cold air as it
would
> >>> in warm so more liquid fuel may slip by causing bad mileage.

> The original poster wasn't talking about how well the gas vaporized. He
> claimed that combustion does not occur as well in colder air, which is
> factually incorrect. But, thanks for playing.

Perhaps he mispoke, and meant a cold engine.
It's going to -33C tonight.
How's *your* mileage?

Btw, what's with the attitude?
Jeez.

Steve
Ottawa

Re: Holy crap people are misinformed
 

"Chris Aseltine" <ophidian@newsnation.com> wrote in message
news:gBmNb.55562$nt4.84825@attbi_s51...
> >>> I agree that the fuel wouldn't combust the same in cold air as it
would
> >>> in warm so more liquid fuel may slip by causing bad mileage.

> The original poster wasn't talking about how well the gas vaporized. He
> claimed that combustion does not occur as well in colder air, which is
> factually incorrect. But, thanks for playing.

Perhaps he mispoke, and meant a cold engine.
It's going to -33C tonight.
How's *your* mileage?

Btw, what's with the attitude?
Jeez.

Steve
Ottawa

Re: Holy crap people are misinformed
 

I certainly agree with you. I didn't realize that people were disagreeing
with this fact. Oddly enough anybody can learn this just watching an hour
of NHRA 1/4 mile action on the weekend.

I think I learned that in high school before I went to UTI in Phoenix for
formal training.

CaptainKrunch


"Chris Aseltine" <ophidian@newsnation.com> wrote in message
news:lUlNb.54022$sv6.131334@attbi_s52...
> "Jim" <jkc84xx@optonline(take this and XX out).net> writes:
>
> > I agree that the fuel wouldn't combust the same in cold air as it would
in
> > warm so more liquid fuel may slip by causing bad mileage.
>
> I never cease to be amazed at the quality physics and chemistry lessons
> doled out on the various auto groups on a regular basis.
>
> Cold air is MORE dense than warm air, and thus, per unit volume, there is
> more oxygen and more combustion power. By temperature alone, an engine
> should deliver more power in colder air.
>
>

Re: Holy crap people are misinformed
 

I certainly agree with you. I didn't realize that people were disagreeing
with this fact. Oddly enough anybody can learn this just watching an hour
of NHRA 1/4 mile action on the weekend.

I think I learned that in high school before I went to UTI in Phoenix for
formal training.

CaptainKrunch


"Chris Aseltine" <ophidian@newsnation.com> wrote in message
news:lUlNb.54022$sv6.131334@attbi_s52...
> "Jim" <jkc84xx@optonline(take this and XX out).net> writes:
>
> > I agree that the fuel wouldn't combust the same in cold air as it would
in
> > warm so more liquid fuel may slip by causing bad mileage.
>
> I never cease to be amazed at the quality physics and chemistry lessons
> doled out on the various auto groups on a regular basis.
>
> Cold air is MORE dense than warm air, and thus, per unit volume, there is
> more oxygen and more combustion power. By temperature alone, an engine
> should deliver more power in colder air.
>
>