The performance of Juke mainly depends on the oil you are feeding your juke with. Let it be the engine oil or transmission oil. Juke has three driving modes eco, normal, sports. If I drive my juke in city then the average I get is:
Eco mode - 15
Normal mode - 14 approx
Sports mode - 11.5 approx
And if I am driving on highway then I get:
Eco mode - 18
Normal - 16
Sports - 13
And I drive it with mix foot, heavy snd light one.
The most common problem we have here is that the people dnt have the manuals of the vehicles they own or if they have it they seldom use it. Juke has not a simple CVT transmission, I had discussion with many Juke owners and they pour the oil whta they can get hold off. Juke needs transmission oil of specs "ns2 cvt". If you use appropriate engine and transmission oils, it would give you an excellent performance. What I have also noted is that the fuel quality greatly affects the performance of the juke. If you use high octance, it gives N excellent average and performance