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We use the "Anti Knock" octane number so they are different than Europe. But, the VTX was designed to run on the lowest octane available that is 87 octane here in the USA
 

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,
fyi... depends...

87 regular fuel.
89
91 High test.

but 86 and 85 at higher altitudes ..
all unleaded....


there is also several levels of Racing Gas ( fuel )... but not as easy to get.
 

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Discussion Starter #4
In Poland, the lowest octane is 95, I think the 87 octane engine would work even better, but such fuel is not obtainable.
 

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In Poland, the lowest octane is 95, I think the 87 octane engine would work even better, but such fuel is not obtainable.

:surprise:




And welcome!
 
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