I think that taking video evidence is a good plan. Would an airlock no manifest as high water temps as well?
When you say you were driving for a while, how long is a while? 10 mins 30 mins.
Oil temps are quite subjective and really depend on a number of factors i.e. how long you hold the gears at a given rev, speed of travel (airflow), if you've ragged the car and then sat idling (engine heat soak) etc.
Consider the following, (both scenarios will effect the oil temps in different ways):
- Driving around some country roads holding 3.5k and rising to 5k for 10 miles or so and then look at the temps.
- Long high speed runs on the Autobahn
Lesmo, Bikeracer, Vicky or Oxfordlad would be good to get a view from as they all have Nismo's, but I wouldnt expect them to be any different to a GT.
I would also make sure that the oil temp sensor is working as expected, given that they have swapped out the engine.
My 2016 car runs cooler than my 2010 used to - and my 2010 never got above 115 degrees, even in hot summer weather. I know neither of my cars were Nismos, so there may be a difference there.
This makes sense given the oem oil cooler post 2012.
You've never had it above 115C, you need to try harder Chubbs . 10 mins on track and i could hit 135C easily before i fitted the oil cooler.
Normal oil temps are around 90 - 100 for the Oil and water is around 88C, so it makes sense that the oil temps rise when you drive harder, and the harder and longer the drive the higher the oil temps.
Current - 2009 GTR Premium, Stage 2
Current - 2010 370z Black Edition, DeCat, Milltek Exhaust, EcuTek, Custom Horsham Developments SC air 2 air, Reversing Camera, 20mm Eibach Spacers, Braded SS Brake Lines. Plus many more mods. Currently running 551/400
Black Skoda Fabia, too many mods to mention 290BHP now with the son.