Fuel octane learn it.

I would like to make one thing clear for all of the "newer" car crowd.

Higher octane does NOT mean more power.
Octane refers to the temperature and compression at which the gasoline and oxygen detonate. Higher octane = takes more to detonate. That's all.

:rolleyes: Wow, :sly: lets all bow down and kiss your feet for explaining this on your second post to people who have far more experence than yourself :worshippy . Hasnt this subject ben covered about 1000 times here on AF? Same with the whole Turbo v. Supercharger deal. Also the Import v. Domestic thing. :bloated:

Next time dont just jump in ranting and raving one a subject that is overly discussed... :loser:

OK, OBVIOUSLY did not read the rules to the forums... mister I've been here longer and know everything.

Don't attack people? thanks


OK.... as I read thread after thread in other areas of the forum, I noticed many guys/girls saying that thier 1/4 times could have been even faster if they would have used some sort of octane booster. Or They wish they would have used high octane gas on their dynos...

Yes that was my second post. Congrats. Now, as far as explaining this to people who have far more experience than myself? Your ignorance shows. I've probably built more engines than cars you've driven...
I simply joined the forum to sell a nice pair of tires I no longer need. Then I looked around the forum for a bit, noticed the octane thing in MANY places, and wanted to help out the "newer" crowd. OBVIOUSLY, yes the topic has come up before. Again, congrats. But I still see and hear guys refering to getting more power out of higher octane. I'm am trying to help these people. You... you need the type of help I am unable to supply. I do have a friend that is into psychiatry though...

damn kids....

Yeah us damn kids.... Hey you better show some respect, we get to choose your retirement home grandpa!

stupid kids like you will end our world

OK, OBVIOUSLY did not read the rules to the forums... mister I've been here longer and know everything.

Don't attack people? thanks


OK.... as I read thread after thread in other areas of the forum, I noticed many guys/girls saying that thier 1/4 times could have been even faster if they would have used some sort of octane booster. Or They wish they would have used high octane gas on their dynos...

Yes that was my second post. Congrats. Now, as far as explaining this to people who have far more experience than myself? Your ignorance shows. I've probably built more engines than cars you've driven...
I simply joined the forum to sell a nice pair of tires I no longer need. Then I looked around the forum for a bit, noticed the octane thing in MANY places, and wanted to help out the "newer" crowd. OBVIOUSLY, yes the topic has come up before. Again, congrats. But I still see and hear guys refering to getting more power out of higher octane. I'm am trying to help these people. You... you need the type of help I am unable to supply. I do have a friend that is into psychiatry though...


Calm down old bull headed man. You lack humor.
Us "kids" have discussed this over and over. and if you have been in theis form for more than 5 seconds you would have known that that has been said over and over. People get tired of seeing the same subjects cluttering up the place and masking the truely important threads.
Also, FYI, higher octane fules often do have a greater energy stored. but not enough to gain even a single HP in most cases. the type of octane boosters you pour into your tank would do nothing to increase stored energy, however. they are simply flameable inhibitors. anyone with half a year of chemistry experence would know this.

so stay off the old topics and dont use the "my penis is bigger than yours because im old and have been building motors since before you where born" deal.

Fine... My penis is bigger than yours because it just is then!

Fryman... By the way, I answered some of your 350 turbo questions since those other guys had virtually NO input.

Well thank you. But we already got a new block and had it stroked to 383 then put Electronic Multiport Fule injection on it instead of messing around with an old carburated engine handleing turbocharging.
but you are right. all of the others simply said "your an idiot, you need a blower because they are far more efficent (note sarcasum)"

Also, FYI, higher octane fules often do have a greater energy stored. but not enough to gain even a single HP in most cases. the type of octane boosters you pour into your tank would do nothing to increase stored energy, however. they are simply flameable inhibitors. anyone with half a year of chemistry experence would know this.

True, Octane booster doesn't increase power. The only reason they might make it feel like you've got more power is because like you said, they are "flameablility inhibitors" - They prolonged the combustion process of each stroke. This is turn reduces your engine's tendancy to detonate / knock. When your engine detects knock, it cuts timing which kills HP. By running higher octane, your engine will be running smoother w/ less knock = engine won't cut timing cause there will be less knock = no robbed HP.

So overall, octane booster doesn't add HP, it merely stops your computer from stealing it by allowing it to run at optimum timing.

I'm not disagreeing with anyone here or nothin, just thought I'd add my 2 cents as long as you guys were on the topic

You know what guy's..... Im impressed in the fact that Mopar knows how to use a computer. I guess you can teach on old dog new trick's... maybe we can also teach him how to search the archives!

True, Octane booster doesn't increase power. The only reason they might make it feel like you've got more power is because like you said, they are "flameablility inhibitors" - They prolonged the combustion process of each stroke. This is turn reduces your engine's tendancy to detonate / knock. When your engine detects knock, it cuts timing which kills HP. By running higher octane, your engine will be running smoother w/ less knock = engine won't cut timing cause there will be less knock = no robbed HP.

So overall, octane booster doesn't add HP, it merely stops your computer from stealing it by allowing it to run at optimum timing.

I'm not disagreeing with anyone here or nothin, just thought I'd add my 2 cents as long as you guys were on the topic

Only in some cases will increased octane prevent an ECU from robbing the engine of power. The car must first be pinging and second must be equipped with a knock sensor.

BTW, octane is simply a measure of the fuel's ability to resist auto-ignition. It is not linked with how long the fuel takes to burn. Nor does how long it takes for the fuel to burn have anything to do with reducing knock.

Read the Gasoline FAQ for more information and for advanced credit, read a textbook on internal combustion engines such as "The Internal-Combustion Engine in Theory and Practice" by Charles Fayette Taylor.

Thanks for the input P10DET. It's nice to read a post that isn't embellished in ignorance...

I would like to make one thing clear for all of the "newer" car crowd.

Higher octane does NOT mean more power.
Octane refers to the temperature and compression at which the gasoline and oxygen detonate. Higher octane = takes more to detonate. That's all.

While you are correct that running a higher octane will not give you more power, the fact of the matter is that a higher octane will mean that you are less likely to get detonation. This will allow you to run more advanced timing or perhaps more boost thus allowing for power gains. For instance, the SRT-4 has a nifty little upgrade on the stage 2 kit where the ECU has more than one map. One for pump gas and one for higher octane. Put in some 110 octane and flip the switch and you will see more power.

That could be the type of thing that some of these so called kids were talking about.

AS far as octane booster go, they don't even raise your octane level a full point. They are snake oil and are only there to make you waste your money. There are mixtures you can use to raise your octane level, but you can't buy them at Checker Auto or Wal Mart.

I understand that you're just trying to inform people but you are going about it all the wrong way. You preach to CB not to insult people yet you are doing just that. All I can tell you is to knock off the attitude or you might not be around here too much longer.

As for this thread, it is in the wrong section, so I’m moving it.

And Im closing it.

As an informative thread its largely useless.

As an example of how NOT to act on an internet forums its rather useful.

MOPARmania Making a bold, blunt statement with little information to justify it, or back it up, in an open forum with a large number of technicaly minded people will not win you any friends.

If you have some information and or knowledge you would like to share then please to, but find a way to phrase it that provides a clear explanation of what you are saying.

It would also pay to do a forum search to make sure what you are wanting say has not already been well covered.
There are already several threads here on fuel octane, most of them with input from engineers.


CBFryman there is a right way and a wrong way to treat a new member.
That was the wrong way.
You are not a moderator, and have no right to think you can tell other members how to behave, or to try and correct thier misbehaviour.
Some polite advice in your first post would have gone down much better, and saved me wasting several minutes of my life closing this thread and writing this reply.