phunk

air enters the front bumper, passes through the radiator and engine bay, and exits underneath the car. this is typical of almost all cars.

adding a real oil cooler will aid the issue. the stock "oil cooler" is just a heat exchanger that uses engine coolant. so its trying to "cool" your oil with 170+ degree water. The best the stock oil cooler could ever do if it were 100% efficient, is bring the oil to water temps. If your water temps climb from sitting in traffic, your low limit for the oil raises.

If you install a proper air/oil cooler, you have a much more ideal configuration. The factory heat exchanger can work to help bring your oil up to temp faster in the morning, and also reduce overcooling of the oil on cool days. But the additional oil cooler will maximize your ability to shed excess oil heat.

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