Hi all looking at a 2012 patrol wagon but have heard so much negativity re engine 3.0 ltre turbo have the problems been fixed since the earlier models,i notice the vehicle I am looking at has a oil temp gauge mounted on dash why would you need to do that is there a risk of oil temp problems?vehicle done less than 10,000klms as new are there any other important issues I should address before spending my kids inheritance, I am green as far as Nissan so bear with me and my silly questios