[dave.]

Any difference? Honestly, there shouldn't be any difference in response or performance right?

 

[02gsxr_1000]

lol yes their is a major differance. well if you like for you bike to run good. 93 octane only !!!
unless you have the mods to support a higher octane

 

[MotoMummy]

Whatever your manual calls for unless you tune for another octane based on the modifications you have done.

 

[Neils600]

fuel can make a HUGE difference. we only have 91 out here but its all i run. dont penny pinch on 3 gallons of gas.

 

[1qwikgix]

if i get my bike re-dynoed on u4 is that all i should run from then on? will it throw off the mapping if you run a lower octane?

 

[chicken strips]

im pretty sure the manual calls for regular 87. Thats what I run with no problems.

 

[gsxr00]

I never looked, i thought they needed premo fuel. Oh well its less than a dollar a tank, i think i will just stay with it.

 

[1qwik6]

lol yes their is a major differance. well if you like for you bike to run good. 93 octane only !!!

:hammer:hammer:hammer

Not true...first part is...not the 2nd part. How many times do we have to go through this...seriously.

 

[Hong3103]

I believe the search function could've answered this question. :wait

 

[SINNER73]

O My Fucken God . Agian Guys ? :cursing :wtf :flipoff :nono :rolleyes :hammer:hammer:hammer:hammer :shifty :hammer

 

[rustynutzz]

Anyone ever ran 110 octane? Just curious since the sunoco down the road has some.

 

[MotoMummy]

octane is how well gas RESISTS igniting. It's harder to burn higher octane so if you run too high of octane you'll lose horse power and gum up the engine. Most hp and best octane to run is the LOWEST you can w/o causing damage to the engine.

 

[GoInLite]

I have ran all types of gas in mine. I am noticed a difference in real high 100+ test. I also noticed it ran about 5 degrees hotter. I have not dyno'd mine yet, but I would say 87 is the best. I mean , after all, our bikes were factory tuned with that octane.

I also have done a bit of research of my own. I race drags, so this topic is kind of a hot topic. There is typically NO difference between 87-91 octane. Dyno proven. 93 octane by itself is fine. A 2/1 ratio of 93+100 is nice. 100 octane tends of make the motor run lean. That is with 4 cylinder motors though. I am sure it isnt too far from the same on ours.

 

[luvx77x8o4]

manual says 87...no need to spend any extra

 

[MdBikerBoy]

yup the lowest octane without detonating.

87 for 600s works great on mine, felt no different running 89 or 93 other than lighter wallet.


and my 1k calls for at least 90 octane according to the manual dont have that only 89 mid or 93 prem. so i use 93.

 

[sydwazshawn]

Honestly this must be the most replayed post on this sight.. I’ve seen at least 5 posts on this topic since I’ve been on this forum.:shifty

 

[dave.]

our bikes run really high compression don't they? The manual recommends 87 for 600's, I'd stick with that.

 

[2K7 750R]

My 750 had a sticker on the gas tank saying to use premium only. thats 93 to me.

 

[GixxPA]

Yep, so run what the bike manufacturer recommends. Like someone said, higher octane resists igniting sooner and easier.

 

[1qwik6]

My 750 had a sticker on the gas tank saying to use premium only. thats 93 to me.

Where do you live? 93 is usually Super. There should be a # rating on the frame.