With minimal difference between premium and regular fuel in the way of MPG, is there any reason you are paying extra for premium fuel? Since there is minimal difference, the cost difference would be reason enough for me to stick with regular.
I just crossed 1000 miles on her and I’m still not able to break even 19 mpg overall. This sounds like a problem?
Most, if not all, of my miles are city and local. My last few fill-ups are typically around 15-16 mpg according to the dash and I am starting to get concerned.
Over the last two weeks, I have been very conscious with how fast I am going and my overall rpms. Most gears shift on the low side of 2k rpm and I rarely approach 3k rpm unless I am trying to overtake someone. It stays in Normal or ECO mode. I also turn off the auto-stop/start, but that should have minimal impact in my opinion, unless I am completely wrong about that.
