That's not true, I know a guy with a 2008 x drive with the sports package and no oil cooler.
For example:
https://www.cargurus.com/Cars/invent...ting=212900130
Like I said, if the car has the "S823A Hot-climate version" option then it has an oil cooler.
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2011 335i, FBO, N55+ Turbo, full E85, S55 intercooler, etc.
2015 X5 35i Xdrive