noob needs help with mileage - only 10 MPG!

warwagons said

Run regular unleaded fuel. The /6 does not need premium. It may even run better & improve the mileage. This is of course if the motor is stock.

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x2 Premium is higher octane which contrary to popular belief burns slower. This fights preignition.Pull a plug and see whats going on. If its sooty black its too rich. Float problem or stuck choke.