I’ve finally sussed out ‘B’ mode (thanks YouTube) and it seems to be quite a bit more efficient. (Ignore temperature, didn’t have heating in for the 4.5 effort.) All week I’ve been hovering around 4.5 for the 15ish mile commute to and from work, so 5.2 is quite an increase. Will verify it tomorrow, but it looks like my already cheap to run car is gonna be even cheaper! What’s every ones best (and worst) results?