free website stats program Grade Of Fuel Poll | Page 12 | Harley Davidson Forums

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
The higher octane really does nothing for the motor but it can damage the valves if run in excess. The best octane for your motor is one that will eliminate any pinging but I run 93 in any event.

Octane ratings aren't what they use to be years back like when Sunoco had 103.
 
The highest we can get here on the central coast of California is 91 octane. I'm going through several states to and from Sturgis next month and I'm wondering whether I should try some 93 octane or just stick with the 91. (if I can find it.)
 
93 octane because it runs cooler and the manual calls for it...the 96CID engines need all the cooling they can get...got a PCV on the way...not sure what it will do but its only $300 bucks....:rider
 
I use 93 and try to find a pump where the last person bought 93 so I dont get a gallon of 87 out of the hose
 
Back
Top