Amen brotha!

 

I guess I am just a fan of using what the bike was designed for.

You know HONDA probably knew what they were doing when they built it.

It would be different if you had a really high mileage bike that was pinging with low octane, or if you were running nitrous or turbo.

 

Some buddies said they noticed black smoke coming out the pipe w. 87. I noticed snappier low-mid response w. higher octane. I'm currently NOT using a custom map but would like to. The bike runs cooler w. lower octanes.

 

I get better milage with 87 than higher octane. Think it's related to the bike actually using all the fuel b/c 87 doesn't require as much compression. Why use higher octane- all it does is stop knocking and 87 doesn't make my bike knock. How about yours? My car specifially calls out for it (92+), the bike doesn't.

 

87 octance is gonna provide the most efficient and complete combustion on the F4i, which in turn will give a tad more HP and MPG.

 

Actually you can get 110 near Sear's point at a regular station and right down by my place there's a pump with 100.

 

Yikes, searching around the net on this topic just pulls up hoards of forums with people arguing about what is better.

Does the manual say 87 *or higher*?

I'm definately going to reduce the octane from 94 like I was putting in before, but there isn't any definitive answer on what is the best. The differences between 87 and say, 89 are probably insignificant

 

The definitive answer is simple: The lowest octane that does not cause the engine to ping is the best for *that* engine.

 

hmmm . . . so i should stop putting 93-94 octane into my gas tank and start putting 87 octane into my tank?

 

YES!!!

Unless you get pinging. Make sure you use good gas too, and don't fill up if you see the tanker truck there.