My list of 7 biggest, but solvable issues with stock 370Z Nismo

Rusty

The so called oil cooler on the 12+ models is different from what you think you will see. It's an oil to coolant heat exchanger. Not an oil to air heat exchanger like the aftermarket ones like Z1, FI, etc. It has what looks like a sandwich plate at the oil filter, with 2 coolant hoses going to it. The coolant circulates through the sandwich to cool the oil. In the right conditions, it's a great set-up if you can hold the coolant at a constant temperature. In a car, it's kind of so-so because you can not hold a steady coolant temperature. Too many variables with engine load.

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