[roosterk0031]

Did a little digging and found your car's fuel log on fuelly.

E0 you 53 total fills with 25 during October to April, 28 fills March to August with a 38.7 average, 57/43 split advantage summer.

E10 you 20 total fills with 16 during October to April, only 4 March to August with a 35.6 average, a 80/20 split advantage winter.

I loss around 10% in the winter, just glancing at some 3-tank averages December was 38 mpg, and June 42. (different tires)