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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 didn't read all the pages so this may have been mentioned. 91 is the highest octane available at the typical Shell stations around here.
 
I mostly use 91 because that is usually all that is available in this area. If a higher octane is available it goes in. I seem to get the best mileage and performance with Shell gas whether it is 91 or higher.
 
In Colorado-High altitude, we can only get 91 and they say that higher octane does not work that good at 10000 feet
 
Anything less than 93 and I get a ping. When traveling to Sturgis, I carry some of those octane boosters because of the difficulty in finding anything above 89 in that part of the country. Unless things have changed recently.
 
Not sure about California but I cant find 93 oct anywhere. We only have 91. There is a spot where I found 100 but am afraid to try it. Would it be bad?
 
I live on E coast FL (Space Coast). I have found two stations with ethanol free fuel. They cater to the boating community. Ethanol destroys the seals in older boats fuel systems. It does give my EG a MPG boast.
 
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