Thankyou to oilman.
 

Just wanted to post my thanks to Simon and Guy for sorting the oil for Mrs. Vegescoob's new car.
Micra 160SR, but handbook doesn't state oil for this engine and email to Nissan got no reply.
I couldn't find anything on 'net but an enquiry in evening on Opie Oils site produced a reply from Simon the same night with the info and some suggestions of oils for me to consider.
A telephone conversation next day with Guy firmed up my choice, so ordered via site and oil arrives next day.
Before someone says "they're want to sell you oil", I know that. That is their business.
A business that is an outstanding example of service in this day of too often lax and shoddy service.

You could have just phoned the local Nissan dealership