I have been keeping track of my milage on my work laptop. I can update specifics later. I believe that I am on my 8 or 9th full Tank with two small fill ups between. If I recall correctly my first two tanks were in the upper 30's of overall MPG. After that, it steadily raised and averaged 42 then 47 mpg. My best overall tank averages were 50.7 and 52.5. Both of these are the computer ratings and were off by 1.8 mpg (higher) from actual. The 50.7 involved a lot of Hyper driving while the 52.5 was placed in ECO mode, no hyper driving but top speed was limited to 65 on the interstate. My daily commute consists of 62 miles one way. 42 is Highway while the remaining 20 is city. The biggest affect that I have seen has been in the City driving. Eco mode is quite helpful but the true trick is knowing the sweet spots for the CVT. 45 to 60 mpg will reap huge rewards in MPG. Learning to avoid stop and go traffic along with changing driving patterns to hit this range is very helpful. However, I will note that using two hypermile techniques can easily give you 42 to 47 mpg in city driving. 1. keep your feet off the brake. If you are the individual that constantly is covering the brake you will not only annoy the drivers behind you but loose efficiency. 2. Keep your foot at a constant throttle. What ever the speed, if you keep the throttle constant your using and wasting less kinetic energy. This was my biggest change. I use to be very erratic. Trying this out made my city commutes of 5 to 7 miles go from mid 20s to mid 40s. I also discovered that the heavy throttle to get up to speed (even with the Turbo kicking in) had less impact than maintaining your speed once it was reached. My apologies for the novel. Take care and it is a pleasure being introduced to this forum.