The manual says "86 or higher"...leading me to ascertain that 86 is the lowest, minimally acceptable, octane-rated fuel for suggested use. (It also suggests using premium if there's knocking or pinging) The higher the octane, the slower it burns. My truck manual calls for the same fuel, but I've always noticed that a tank of 92 octane will last longer than a tank of 87.
Rather than hope for "a hint of truth," I generally stick to Top Tier brands (www.toptiergas.com/retailers.html). As far as I know, it's the only voluntary industry standard for detergent additives (endorsed by BMW, GM, Honda, Toyota, VW and Audi), and it applies to all grades of gas sold by the listed retailers.
who with yamaha said that?
RE-READ, it doesn't say 91 octane as read at the pump.... the 91 is a different measurement. MY dealer told me that too, I read the manual again, our bike is designed for 87, if you notice any "pinging" you can go to a higher octane to help get rid if it.
If you want to be green, use 87 octane. Higher octane gasloine burns slower, not necessarily cleaner/more completely, and it requires more energy to refine (hence the higher cost).
Sir are you joking??? You say you want to protect our planet by burning 91 fuel and you are also wondering how to get rid of your catalytic converter??? I sure hope you are in fact joking but if not : 1) Your catalytic converter is the best part of the entire bike to remove/reduce harmful emissions that all combustion engines produce!!! That is the last thing someone interested in the environment should remove
I'm pretty sure he was kidding. The lack of a smiley face really hurts the sarcasmSir are you joking??? You say you want to protect our planet by burning 91 fuel and you are also wondering how to get rid of your catalytic converter??? I sure hope you are in fact joking but if not : 1) Your catalytic converter is the best part of the entire bike to remove/reduce harmful emissions that all combustion engines produce!!! That is the last thing someone interested in the environment should remove
Also higher octane fuel doesn't burn hotter and cleaner. It mainly burns slower and more controlled under higher cylinder pressures and temps. It will not detonate or explode like the lower octane fuels will in a higher compression ratio engine...you're not saving anything and most likely just wasting your money...unless you run your bike at high temps and under heavy loads or at high altitude and are experiencing detonation...
You need to google "catalytic convert" and "high octane fuel" and start reading...
Cheers
I do agree with you, it does not increase power, but it does operate smoother. Sorry to point out the obvious, but its wikipedia, anyone can add to or change the info...