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What Octane Fuel should I use?

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Plan to ride hard this weekend. What octane is required for this horse? Is the 91 Cali gas ok?

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For what it is worth; asking the same question myself I had called Klotz, http://www.klotzlube.com/ and spoke with a few techs, the results came back as this. West of the Mississippi Shell Oil has the best pump gas for the 450, east Citigo (sp). Second was BP British Petroluem. Evidently they all have a set way of refining the fuel.

If your motor has nothing done to it. 91 Pump gas is suciffient. Honda built the motor with that in mind. Since I live above 4500 feet I run VP U4 so I dont have to rejet as I ride above 8,000 feet. Smells good and the bike is crisp.

http://www.vpracingfuels.com/

Since the local gas station sell U4 to all the bikers in the area I use that for racing and mountain trail rides. Never had any power issues using Shell gas. Holeshot a few races over the summer with it.

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i think that you will find that BP and shell are the same company but with different names. They are big in England but not so much here (USA).

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