I would most certainly agree!

Most of my real world experience is with diesel generator sets. When carrying 75 to 80 percent load, oil temps can easily reach 100 degrees higher than coolant temp.. Then after the coolers, it'll be anywhere from 40 to 60 degrees cooler. I've had a couple gensets carry 110 percent load for 30 or 40 minutes while a plant was being restarted. oil temps were getting around 350 / 360 degrees. Just about that point is shutdown for most of them. The turbos will coke the oil unless you're using synthetics. It's amazing watching a turbo as big as your chest glowing cherry red!