I've used mobile 1 10w40 high mileage and purolator pureone oil filters for years without any problems.
I don't track my car nearly as much as the OP does, but I have had the turbo glowing orange on occasion drifting, etc. Daily driving in the socal summer heat with A/C and an air/oil cooled turbo has also put the oil to the test.
I never had an oil cooler, but I'm planning on installing one soon as it really prolongs the life of the oil which in turn extends the life of the motor, turbo, etc.
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