| Message: | | "There will be a loss of power and a decrease in fuel mileage, but the size of the horsepower loss and the increase in fuel consumption depends upon many factors, such as ambient temperature, exact formulation of the fuel and driving technique, so BMW does not offer any estimates for operation on lower grade fuels."
Buried in some promo literature for my BMW R1200RT motorcycle, there is the figure of 101 peak HP when running on reduced octane (87?) fuel. As the normal spec is 110 HP, that would equate to about an 8% power loss compared to premium.
Tom K.
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