My car is a nice weather daily driver. I put about 7500 miles a year on it between April 1 and the first time they slat the roads in Nov/Dec. Since I drive this car a lot mileage is important to me and my set up gets 16.5-18 mpg around town and 21-22 mpg on the hiway. The car also runs on 89 octane and I have used 87 in a pinch, I just have to be careful below 3000 rpm or it pings.