1 year of owning . Keep it all on paper . This is calculations starting last April when purchased .

 

Were these cars next in line on the production floor??
2011 base auto, 36.73.
Winter gas gone, overall mpg on the rise now.
Have on Xcel spreadsheet, but have since transferred all my data
to the FUELLY site. Like the graphs

 

. Twins separated at birth ? If so .

 

Did a fill yesterday of Sunoco 89 w/E10 and got 40.6 . Display was 40.2 . This car seems to prefer higher octane . Have been getting 40+ for about 2 months . Gas was BJs Wholsale 93 w/E10 .

 

With gas prices dropping it might be worth trying a higher octane. To see if any difference in performance and mileage.

 

Would be interesting to see if you have any gains with 93 . If so , get back with the results . Thanks

 

I recorded a tank with 41.8mpg on 85 octane 10% ethanol 2 weeks ago. Over 5000 ft elevation.