E93 or 90 ethanol free?

[willowstreetguzziguy]

My 1200Sport calls for premium. We got a new gas station in town (Royal Farms) that also sells 90 ethanol free gas. Should I continue to run 93 ethanol premium or switch over to 90 ethanol free?

[oldbike54]

 It might be good to understand that Europe still uses the old octane rating system , in America we use the Ron/Mon averaging system to rate octane . Our 90 octane is about 93 octane in Europe . The 90 octane Mon/Ron will be fine .

 Dusty

[redhawk47]

Your nomenclature had me concerned until re-read your post. E93 would refer to a gasoline blend that is 93% ethanol. I suspect that you were referring to 93 octane E10 fuel.
Yes, definitely use the 90 octane ethanol free fuel. It is better for your motorcycle, and for the world. The unintended consequences of ethanol in our gasoline is making the problems worse.

There is a directory of stations that sell ethanol free gasoline: pure-gas.org (the dash is an important part of the URL; without it you get a bad website). Phone apps are also available.

[fatbob]

Another vote for the pure gas, ethanol free.