What Octane are you running

Just out of currosity, What fuel are you running in your bike. I have an 01 F4i and have been using 93 octane which seems to be running good.  I dont have the owners manual so if someone with an 01 could tell me if im not supposed to be running 93 please post it

Its made to run on Regular... but the Premium isn't a bad thing.

i run Shell 91, good gas, and contains no ethenol.....

premium

93

i run 93 if i can get it 91 if i cant..
 
my owners manual for my bike says to only run 91 octane or higher, and that running anything less could cause a knock.
 
 

premium.. is it sunoco that has the 94 octane? Reguardless.. I put the highest in

87, the bike is made to run on 87 pump octain, running anything higher is a waste of money and you are loosing power, not gaining it.

regular here.  get about 45mpg around town and 35 on the highway and about 25 at the track. . .lol.. faster speed suck    

where in the manual for an F4i does it say to run 91 octane gas?????
this topic has ben beaten to death...do a search.

Octane is the resistance to burn so you don't get preignition or detonation. I usually run midgrade. Which comes out to 89 octane I believe. According to the oem manual it says run 87 octane and if you experience knocking or pinging then put a higher grade in it. In F4i's it is a waste of money to run premium if you aren't experiencing knocking or pinging. I would start at regular unleaded if you start to experience knocking or pinging then bump it up to midgrade. A little bit of knocking and pinging for the time being won't be a problem, it's if it keeps occuring for long periods of time do you start to do internal damage.

quote:

ORIGINAL: TBFGhost

87, the bike is made to run on 87 pump octain, running anything higher is a waste of money and you are loosing power, not gaining it.

umm i doubt running a higher octane is gonna make your bike "lose" power.  People dont pay more for better gas to get more power, if anything it's just running cleaner.

You will not lose any power by running a higher octane fuel.  As per higher octane fuels being cleaner or even "Name Brand" fuels being cleaner, I dont really think so.  To answer the original question,  I found out recently that I have a VP Racing gas station a couple blocks away from my house. (Good for my turbo charged DSM)  They sell 100 and 93 octane fuel out of the pump.  I've run 100 and 93 with absoulutely no difference except the amazing smell that 100 octane puts off, it should be a colonge, equivalent to sex panther.  I usually run 91 (standard premium in the great state of Nevada) and no problems with it, but I'm going to go with 87 if I dont get any knock with it. 

GENERAL RULE...go lowest without knocking...if it does...then go up.
 
now as for higher octane producing less power...we would really need to see a dyno comparison of a bike that doesn't ping at 87...and then runs 91...and compare...common sense would say that there is no power to be gained (bike has dumb ecu, no sensors telling it to advance timing or back off timing, etc.)...but as far as losing power...i guess it is possible if you go super high octane and the fuel doesn't burn completely.
 
100 octane does smell great...i don't know about a cologne, cause since chicks don't dig the smell, you'll just be attracting guys...hahahhahaha...
 
 
 
 

I thought this thread was about him asking what the owners manual says to run...

manual says a minimum of 86 octane. just checked mine

Everyone is talking about this possibility of a knock with the 87.  If its not bad to run the 93, and you get no knock, then why not do it.  Think about it, were only talking about a few gallons here.  At my gas station, the 93 is about .20 cents more a gallon than the 87, so to fill it up what are we talking about....one dollar?  As long as the 93 is ok to run, ill stick with that and pay the extra dollar, besides i dont have to worry about, or listen for any knocks.

I have never had any kcocking or pinging on 87....just so you know there is a downfall, I don't know how much you loose, but by running the higher octain, you are loosing power.....

quote:

ORIGINAL: TBFGhost

I have never had any kcocking or pinging on 87....just so you know there is a downfall, I don't know how much you loose, but by running the higher octain, you are loosing power.....

 
lol im not saying running higher octane or anythign cuz it doesnt make a difference but if you put higher octane in there it doesnt make you loose power. i ran 110 leaded in mine and dynoed it and showed a 3hp increase over the regualr gas so i beg to differ and wish i still had my damn sheet to prove it but you will not loose power by running a higher octane. are engine are made to run on 87 but are also made to run on race gas hence improving the overall performance of the engine. ima get it re tuned and dynoed again after i get my header and will save the damn slip of regular to a higher octane gas

quote:

ORIGINAL: devlzluv

quote:

ORIGINAL: TBFGhost

I have never had any kcocking or pinging on 87....just so you know there is a downfall, I don't know how much you loose, but by running the higher octain, you are loosing power.....

lol im not saying running higher octane or anythign cuz it doesnt make a difference but if you put higher octane in there it doesnt make you loose power. i ran 110 leaded in mine and dynoed it and showed a 3hp increase over the regualr gas so i beg to differ and wish i still had my damn sheet to prove it but you will not loose power by running a higher octane. are engine are made to run on 87 but are also made to run on race gas hence improving the overall performance of the engine. ima get it re tuned and dynoed again after i get my header and will save the damn slip of regular to a higher octane gas

 
Ok fair enough, but you are also comparing a bike that has been tuned....not sure what all is done during the tuning, but if something as little as spark advance is messed with you no longer can compair...the more octain, usally the further you can advance the spark.  Run a lower octain with an adavnced spark and you get knock.   The higher the octain the slower and cooler the fuel burns....that is all I am saying....

87 octane, no problems thus far.

quote:

ORIGINAL: Kevin48

Just out of currosity, What fuel are you running in your bike. I have an 01 F4i and have been using 93 octane which seems to be running good.  I dont have the owners manual so if someone with an 01 could tell me if im not supposed to be running 93 please post it

ITS MADE TO RUN ON REGULAR! ... why is this a 2 page thread?

When did the thread change to "What will my bike do on race gas?", or "Tell me where you get your gas"

Its not going to hurt the engine if you run a higher octane... it wont make you loose power... it actually makes you run a cooler temperature. Its cleaner... Unless your running a higher compression, or an advanced timing, you don't need higher than regular!

All the guy was asking, as seen above, was what gas is the bike supposed to run on because he didnt have the manual when he got his bike.

lol ya i agree with u ghost & rather, k ya i get my gas from a sunoco in my are that sells 100/110/120 gas so when i go to dick around on my crappy backroads i get that. but u guys are right it got to a race gas thread, if its not tuned and just stock u can run either or gas it doesnt matter. since i upgraded the exhasut and pcIII and filter if i put in 87 it runs sluggish and like pooo but when i was running stock i ran 87-93 and not much of a diff.

so to answer the question for the main thread run whatever you want it wont affect it at all, lol but if u get a chance throw some race fuel when ya can even stock youll notice a diff with it and plus the smell makes you fell all good and ****

Yeah, I normally just run 87 in mine. But my Dad had 110 from the local Sunoco, and wanted to put it in my bike for shits and giggles. The smell after it burns is definately addicting lmao. And it leaves a white residue on the exhaust tip instead of that black. I didn't really notice that much of a difference if there was one though.

it says 86 or higher for the 02. i run 89, and it runs great. just as long as it doesn't knock your good!