Thanks for your comment Luke.
Thanks for your comment Luke. I suspected that might be the case. As We live at the bottom of the world (New Zealand) I will try to contact Nissan NZ to see if they are prepared to comment. Although the sales people are well intentioned, they by nature of their job, spout regurgitated brochure material. I want expert technical opnion so it will be interesting to see how far I can burrow.