High Octane Gasoline

[Guest]

Here in Los Angeles area I find only 92 octane no 91 and that's all I use. I fill up the tank with no more than $7.50. Texaco gets me better mileage. By the way, if you ever see the orange light on the fuel gauge go on, you better get gas QUICKLY. Mine went on and after less than 1 mile on a hill it died at the light. TIP: coast to the right carefully, then start engine with a hefty twist of throttle and ride to the nearest gas pump.

 

[OB_Bob]

Octane rating is only a rating of the fuels resistance to burn.
The Btu content of 87 vs. 92 is the same in most cases. A fuel with a higher Btu content does not neccesarily deliver more power.
The Reid Vapor Pressure (RVP)is also very close between the two. 6.5-7.0 pounds for both.A fuel with a higher RVP ignites easier.

The BOTTOM LINE is that with no detonation present, higher octane fuel doesn't help. Higher octane fuel may allow you to increase ignition advance (timing), more turbo boost, increase compression, or increased levels of nitrous oxide, which will deliver more power.
But, on its own octane don't mean squat. Your wasting your money on a stock Busa.
Spark plugs will show detonatation, as will the top of your pistons. Unless you modified the motor, or increased advance using the PC2 or something, you should not see this.
Bob

 

[OB_Dirty Pete]

Bob: The manual is in SAE (is that what Americans call inches, foot-pounds, quarts etc? We call that system Imperial), not in metric, which would have been the only difference.

There are no substantial differences in the bikes like emissions equipment. The only difference is in a daytime running light requirement.

My dealer is checking stock right now. He got it for me in 24 hours before, and I'm sure he can can do it again.

Let me know.