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Thread: the real Prius gas mileage
09-16-2005 07:55 PM #16
the real Prius gas mileage
After about 20 tanks on my 05 Prius, the difference between my "actual" and dash MPG has averaged +- 2 MPG (4% error). Since it varies both ways, the lifetime averages are almost identical. I'd say the dash accuracy on any one tank is not great, but over many tanks it's very good.