Of course It has to. Little point in the thing saying you've only got a
150 miles range because the car was thrashed on the last tankful. When you're actually going to get 300 out of this one when cruising.
Mine defaults to remaining range. If you start the engine with a low tank and leave it idling etc say while the screen defrosts, you can see it altering without a wheel turning. Obviously this will be more marked with little fuel in the tank. You may not see an alteration in a reasonable time with a full tank, though.
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