I'm using Chevron 92 octane. I think thats the highest they have at gas stations. Is Arco AM PM any good? I found that it's really cheap. My bike is a 97 GSXR600. What type of gas you guys find that's good?

I use 87 octane, even on the race track. Anything else is a waste of money unless you run race gas or your motor isn't stock.

*edit* on an SRAD http://www.gixxer.com/forums/images/graemlins/smile.gif

Vancity said:
I use 87 octane, even on the race track. Anything else is a waste of money unless you run race gas or your motor isn't stock.



That depends on your bike...I only run 92 or higher since my R1 had a sticker right on the tank not to run anything lower than 91 or 92 I don't remember I pulled it off. I mostly run Sunoco or Amoco...i never put Hess or Exxon gas in my bike...stuff runs like crap in everything i own.

i run 93 from BP. though there are many stories on octane ratings.

D

I run 93 from anywhere. I enver go to race track becuase they only have 92. I guess I'm anal about that.

92 or higher from anywhere but Exxon.

I try to get 94 Ultra from Sunoco. Other than that, any 93 or higher. Doesnt seem to make a shit bit of difference.
I ran 100 octane from Delta Sonic once, didnt seem to make the bike run any different, but it sure smells good. http://www.gixxer.com/forums/images/graemlins/thumb.gif http://www.gixxer.com/forums/images/graemlins/thumb.gif http://www.gixxer.com/forums/images/graemlins/thumb.gif

CatchMe said:
I try to get 94 Ultra from Sunoco. Other than that, any 93 or higher. Doesnt seem to make a shit bit of difference.
I ran 100 octane from Delta Sonic once, didnt seem to make the bike run any different, but it sure smells good. http://www.gixxer.com/forums/images/graemlins/thumb.gif http://www.gixxer.com/forums/images/graemlins/thumb.gif http://www.gixxer.com/forums/images/graemlins/thumb.gif


Don't waste your money for the extra 1 octan of the 94, it doesn't make a lick of difference from the 93.

So you guys think I should switch back to 87 octane?

there was an interesting article posted a while back stating why 87 octane was the best. To sum it up it said gas has a "shelf life" just like any other product, and since 87 is used the most it is always fresher. Sounded good enough for me so I switched (used to only use 93) to 87 and I swear my bike ran alot better. Maybe it was mind games I dont know, but its only 87 for me. Hell of alot cheaper too. http://www.gixxer.com/forums/images/graemlins/thumb.gif p.s. SRAD's only require 87 (according to the manual).

87 octane has a lower flash point and on a small 4 cyl engine like ours it ought to be more than enough to prevent detonation in a stock engine personally I use vp ultimate 4 in my race bike which has a motor octane rating of 92.2 which is probably about 95-97 r+m2 but I run it for the oxygen content not octane a good for instance is vp mr9 ( the one the top ama racers use ) has a motor rating of 87octane so that said unless you run a huge ignition advance and a milled head even premium isn't needed

Book says 85-90.
I run 87. Enough said.

you guys really should be using anything OTHER than Sunoco Ultra 94. First of all, the extra octane will not do anything for power, in fact, you might even lose power. Second, Sunoco uses a VERY high percentage of Ethanol to bring the octane up to 94. Ethanol is not good at all for any parts made of aluminium, in our case, our whole engine and fuel lines. Also, there is no higher oxygen content in Ultra 94 so why bother? if anything, just run a normal premium gas if you have to go premium. I run 89 btw. 48,000 km on the motor with a few trackdays and lots of hard street riding, no problems at all.

I run 91octane(CA highest rated gas) at the 76 station. I didn't want to run anything lower because I didn't want the engine to knock. But since you guys said its fine to run 87, I'll try it and see if anything changes

Yep I also run 89 octane and I swear it made the bike run better.I haven't gotten to the 87 yet but I will in the future

I run 93 octane leaded from Shell. I have tried running unleaded but the bike did not feel as good. We only get 93 either leaded or unleaded where i live ,which is at 1600 metres above sea level. I have seen some 102 octane race fuel ,,would it make a difference?

87 is better. I just filled up my kawasaki ninja250 with 87 and it runs absolutely better. Give it a shot and tell me how it goes.

the cheap stuff. i've never noticed a difference.

Gruebane said:
I have seen some 102 octane race fuel ,,would it make a difference?



only if you ride a killer superbike motor or if is a oxygenated fuel http://www.gixxer.com/forums/images/graemlins/banana.gif

the first time i filled up with sunoco 94, my bike ran like total crap and i had to limp and sputter my way for a 45min ride to get home. more than likely i just got a bad tank o gas, but from then on i only use premium grades.

for everyone that uses the premium with a stock gas and is curious, try this out: 91-94, go to 89, then to 87. I was really skeptical, even though 87 is what my Suzuki Factory requires. I tapered down and saw absolutely zero difference. There's no reason to run higher octane gas and no power to gain from it. Higher octane gas is actually LESS volitile. It is used to prevent pre-detonation that can be a problem in higher compression engines. There's absolutely no benefits to be had on an SRAD with a stock motor. Taper down and see if there's any knocking, I can pretty much garantee it won't.

Oxygenated race gas is another story but it also costs about $5/litre.

BryceRandom814 said:

Gruebane said:
I have seen some 102 octane race fuel ,,would it make a difference?



only if you ride a killer superbike motor or if is a oxygenated fuel http://www.gixxer.com/forums/images/graemlins/banana.gif



Thats what i thought ,,whenever i go to track days there are always a couple of guys with these 20 litre jerry cans of the stuff...always thought its more for poser value...thanks

I just go around the neighborhood in the spring and ask people if I can have the gas that sits in there lawn mowers all winter.....I stock pile it in a big rusty drum ....I figure octane is around 35. It usaully lasts most of the summer .....when it runs out I store my bike with the sludge left in the bottom of the drum. My bike runs great !!!

i use 89, since that's what my owners manual recommends

I usually pay $5.75 for vp ultimate 4 or if their out of that about $13.25 for mr 1