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2003 Silverado. 4.8L V8
Low: .44
High: ~2.75
It fluctuates a lot when I first start it up, but when it's cold, it uses a lot of fuel, even just idling. But it comes down pretty quick, it's under 1.0 within 10 seconds, and then gradually approachs the low as it warms up.
AC bumps it from .44 to .50.
Mike
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