Nissan Juke ( Experiences 1.5 Diesel/1.6 Petrol) Durability, consumption, highway??

Hello together, I play with the idea to buy a Nissan Juke. In the car dealership are of course all of the praises and “no problems” reported. Sure, want to sell their cars too. Now I want to ask you the following things… … I drive a lot of highway ( 90% ) is the diesel really the right choice ( if you see the purchase price, parts : DPF, Turbo ) in relation to the cheaper 1.6 er( 117 HP )? What does the 1.6er realistically consume at 120/1 40 km/h on the track ? ( at the 1.5 it should get so at 5,5 – 6,0, or ?) About the durability of the juke can not be reported yet, but surely about the engines and possible components that make up the difference petrol/diesel ? From the feeling I would tend in terms of durability/sensitivity rather to the petroler, but if this needs 8,X liters, this has done well. I would be happy about opinions…