Greetings, after hibernation my xk8 for 6 months I like to just crank the engine with out starting up the motor for letting the oil flow through the engine, anyone knows which fuse to pull that kills the fuel pump or ignition.
THanks in advance

 

See 20amp fuse #7 in trunk

 

The only thing you need to do is prior to cranking press the accelerator pedal all the way to the floor and hold it there while cranking. That shuts off the injectors and will allow rotation and oil pressure to build up.
You don't list what year you have. If it is Nikisal engine you might need to a little more to get her started.