RX8 Milage Update

I just got back from a trip to Indianapolis. It is about 110 miles one way. I as able to eek out an surprising 274.5 miles out of the RX8 tank. With over 70% of highway driving, the RX8 finally exceeded 20 MPG. (Just barely)
The outbound trip was in total darkness with an average a significant amount of cruising at 79 mph. The return trip was as a lesser 75 mph. Considering my average “in town” fuel economy is around 14.5 MPG, I think it is possible to increase the highway mileage to I think it is possible to get up to 22.5 MPG. Driving style and weather conditions. Below are the details.
Fuel Economy Results
- Total miles driven: 274.5
- Total gallons used: 13.643
- Fuel Milage:20.13
- Fuel Cost: 54.56
- Cost per mile: 19.9 cents per mile


