Hi Snakeboy, I live in Oz on the east coast, ride a 2012 z, have 15/48 gearing, use 95ron , have both kev mods,air filter, leo vince pipes, etc. and riding on a long trip averaging 100kph get almost exactly 400kms before the reserve starts flashing. Maybe it's the aussie fuel that makes the difference. Just a thought.
Brad

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