වැඩි millage එකක් නම් ලැබෙන්නේ නැහැ බං octane rating එක වැඩි උන පලියට......Wikipedia එකේ මෙහෙම කියනවා
" A common misconception is that power output or fuel efficiency can be improved by burning fuel of higher octane than that specified by the engine manufacturer. The power output of an engine depends in part on the energy density of the fuel being burnt. Fuels of different octane ratings may have similar densities, but because switching to a higher octane fuel does not add more hydrocarbon content or oxygen, the engine cannot develop more power."
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