What octane do you use?

[0393GT]

Owner's manual for an '06 gsxr 600 says 87.

[BradM]

I go with the lowest I can in all my vehicles. Currently all 87.

[bug1124]

There is a sticker on the tank of my '02 gsxr 750 that says 91 octane minimum. I just put 89 in.

[stunter bob]

yea the new 06 gsxrs seem to run great on lower octane..my buddy has one and so far it gets great mileage on 87..so i say roll with some 87

[cbrjames]

i go back and forth between 89 and 93. Not sure what my bike calls for, but i seriously doubt its 87.

[stunter bob]

stunt bike gets 87 lol

[Cheezebandit]

I do not have an owners manuel but If I remember correctly it called for a min of 91

and have any of you guys had any problems with pinging .. at the lower octain gas ... with the high compression i am suprised if you dont ..

[Super Coupe]

The motors are so efficient you can run 87 in them.

[bug1124]

The motors are so efficient you can run 87 in them.

What does octane have to do with efficiency?

[Super Coupe]

What does octane have to do with efficiency?

Get Grape in here he can explain it a lot better than I can. ARH can too prolly.

[Goose1]

I run 93 in mine always have.

[SC457A]

Mine gets gets prem.


I dont know why, i rarely get on it. :rolleyes:

[ram57ta]

I've run 87, 89,91, 93.....I never could tell any difference on my V45, 600 F3, or my Blackbird. I just run 87.

[LS1 pwrd Nova]

I run 87 in the Busa. No need to buy 89 or 93 if the bike does not need it. Most bikes will make more power with the lower octane or what the minimun requires. I see people all the time putting 93 in all types of vehicles that do not need it, waste of money and lots carbon buildup in the combustion area. Just like when some people go to the strip and put race fuel in a car that doesnt need it.

[DFWminis]

I always run what the manual told me 91

[slowimport96]

I bet the oil companies are making the auto makers say it needs 91 octane or higher. lol

[Cheezebandit]

I bet the oil companies are making the auto makers say it needs 91 octane or higher. lol

most of the time it just has to do with how agressive the tune is ..

[lowthreeohz]

i read somewhere that the lower octane you can run without detonation = more power. I run midgrade in my bike for peice of mind, but can't ever tell a difference from that to premium.

there's a big debate on the kawiforums about it, but i'm waaaay too lazy to go find a link. :)

[LS1 pwrd Nova]

i read somewhere that the lower octane you can run without detonation = more power. I run midgrade in my bike for peice of mind, but can't ever tell a difference from that to premium.

there's a big debate on the kawiforums about it, but i'm waaaay too lazy to go find a link. :)

That is true.

[bug1124]

i read somewhere that the lower octane you can run without detonation = more power. I run midgrade in my bike for peice of mind, but can't ever tell a difference from that to premium.

there's a big debate on the kawiforums about it, but i'm waaaay too lazy to go find a link. :)

As was stated above, lower octane makes for easier combustion. Pure heptane is far too volatile for engines to run exclusively, so octane is introduced to make the gas harder to burn. This makes the combustion cycle more controllable. All of this is done to prevent knocking or detonation. Another thing you might consider is heat soaking. Heat soaked engines are far more likely to detonate, so running a higher octane during the summer might be a good idea. Unlike cars, motorcycles are not equipped with knock sensors to dial back ignition advance; which means there is nothing except the octane to protect your engine from serious damage.

[Super Coupe]

I remember a while back ARH said the race fuel he ran in his bikes when he raced was 87 octane.

[Chrm10SPkZ28]

my 05 gixxer also calls for 87, i have ran both 87 and 93 and i get better gas millage on 87, i guess its all in how the motor is tuned

[speed3000gt]

'01 Gixxer 750: Sticker on tank says 90

[BIG ED'S 35TH SS]

i put 93 in all the time

[grape]

most of the bikes that are over 1000 cc's, haybusa, blackbird, zx12 are all around 10-1 compression so couple that with the camshaft timing you probably will never make one rattle. All the 600's , 750's, and 1000's are at a minimum of 12-1, but yet again with the cam timing they don't rattle on regular if they are stock. However, you should take a look at the valve seats of a streetbike head that has run nothing but pump gas when they send them to us for a valve job :eek:

You guys ought to add some lead in there somwhere cause the oxygenated crap sold in the dfw area eats vavle seats.