A trip to Ann Arbor from Cincinnati area using the Ethanol free 90 Octane , Drove to Ann Arbor and then to Hell and then to Ypsi and then over to Gull lake to the Gilmore Museum and then to Portage and back to fill up in Ann Arbor. 30 MPG for the total on that tank of gas and 400 miles. and about the sameway going home.
the car used was my 2005 Roadster but top up for half of the trip and 121,000 miles on the clock.