1990 V8 quattro

I have a v8 quattro i just purchased and i cant figure out how to change the mpg computer in the center of the insturment cluster is there some button im not seeing or does all it show is mpg? any help
would be great
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that model should be showing gpm.............
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Lez Pawl wrote:

different display choices.
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Wild Bill wrote:

Right end of windshield wiper stalk has a toggle that changes what readout you are seeing from trip computer. Underneath this stalk is another button - holding it in for a few seconds will reset whatever reading you are looking at (MPG, Trip Time, Average Speed, etc.)
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