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[–] 7 points 7 months ago (1 child)

Different handles is the norm as far as I know. Not sure I've ever seen one with buttons to change with a single handle.

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  • [–] 3 points 7 months ago

    Here in the US my experience for the most part has been one handle for gasoline with buttons for each grade and sometimes a separate handle for diesel. I think places with one handle dispensing multiple octanes have a minimum volume (usually a couple gallons) to make sure your gas has at least the octane you selected even if there was lower octane gas left in the line.

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