wlm 50
I am only on my second tank of fuel - odometer turned over 500 miles this week.
My average speed is generally about 40 mph - some interstate (70-85 mph), some divided hwy (50-60 mph), some two lane (45-60 Mph) and a fair amount of suburban streets (25-50 mph)
1st tank - only 18.5 (pretty sure the dealer used regular or mid-grade and E10 - using eco-pro on the steady speed driving area)
2nd tank - about half way thru and getting about 22.5 mpg (using the eco-pro some) - but with 100% gas and 91 octane (
www.pure-gas.org)