Thanks Falcon_LS. I told him about opieoils but I think he trusts amazon more. He says he wants to use the 'proper' nissan oil to keep the car guarantee in order.
http://www.amazon.co.uk/GENUINE-NISSAN-5W30-Engine-KE900-90033/dp/B00SP2A7K8
I agree with you, and im sure that opieoils is good...