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I use 93 in everything: motorcycle, truck, pressure washer, lawn mower, you name it. Spark knock's a bummer. This is only my opinion, of course.
 

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Go Army!
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632 Posts
91 or higher :thumb
 

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11,978 Posts
Run major brands of premium fuel have the best quality control. Check out attached web site. Ride Safe

Top Tier Gasoline
 

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476 Posts
Whatever Premium I can find with no Ethanol. I'm lucky, the closest station has a 93 premium without Ethanol.
 

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Señor Member
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19,667 Posts
I always put premium in. At Casey's some of them only have 87 and 89 so I settle for 89 when that's my only choice. Really didn't notice a change in performance.
 

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Rode my 06 RK for two month before I bought an Owners manual. I used 87 octane gas until I read in the manual that 91 was recommended. The station carried 87, 89, and 93 octane. I noticed a big difference in sound and performance with the first tank of 93 octane.
 

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234 Posts
Premium 93 if possible,I havent tried it in my SGS but I have mixed aviation gas in with previous bikes and or Turbo Blue race gasoline. Smells great burns cleaner, I drag raced cars for years so I was familiar with race fuel. However expensive and to really get full potential you have to tune for it.
 

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Señor Member
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Since y'all haven't introduced yourself or replied back, you can use any cow dung or cat piss that you find.:cowdung:whizz

:eek
 

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456 Posts
Premium in both bikes, 883 and Ultra
 
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