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Grade Of Fuel Poll

Grade Of Fuel Used

  • Hi Test Only (93)

    Votes: 863 73.3%
  • Mid Grade Only (91)

    Votes: 241 20.5%
  • Lower Grade Only (89)

    Votes: 34 2.9%
  • Low Grade Only (87)

    Votes: 28 2.4%
  • Doesn't Matter To Me

    Votes: 11 0.9%

  • Total voters
    1,177
I use 91 , its the highest here, Sunoco has 93 our dealer says Sunoco blends Ethenol to get it to 93 and not to use it. I have tried it seems fine. I try and run the highest available.
 
Now I am confused ( doesn't take much ) my manual says up to 10% ethanol is ok up to 10% methanol is not ok. My question, is the manual incorrect and I should stay away from 10% ethanol. I can get 94 octane with ethanol or only 91 without where I am.
 
Here in Canada they have mandated the Ethanol mix,so I have been running Sunoco ultra 94,at least they state it on their pumps.and it gives me an octane rating 3 higher then Shell or the others.JMO
 
I run a couple gallons of 110 through my softtail about once a month. Eliminates any chance of pinging, but you can't beat the smell of running 110.
 
Even though my clymer manual says 87 is norm I run high test. Every Harley rider I have asked says to run high test because it is best for Harleys.
 
I always use 93 octane(2006 fxdbi), and even then when it's warm and I'm
headed up a huge incline I still hear a pinging noise.
 
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I find no benfit running premium, the bike starts better when hot on mid grade and runs like garbage on ethanol
 
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