Originally Posted by Modshack

The thing is, the engine temps (coolant) are regulated by the Radiator and thermostat and will remain at approx. 180-190 degrees regardless of the ambient temps (within reason). Higher ambients don't necessarily result in higher oil temps.. 220-230 are perfectly normal oil temps BTW.. Don't like it? quit whining and install a cooler for <$300. Nissan isn't gonna do it for you.