I don't have an X-drive, its an 02 x5.

I'd save a whole heaps of fuel if its only RWD and only engage 4WD when i want or how i'd like to set my torque split.

I can use an oil cooler thermal stat for warming up purpose, the last thing anyone would want on an old X5 is to have many potential places for coolant to escape.

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13.6 Street tire Gtst
11.6 Street tire R32 GTR