Preheat grill on High for about 10 minutes. Oil the grill grates thoroughly. Put pork tenderloin on grill, close the lid, and cood 7 minutes. Flip the pork and cook 6 minutes. Turn off the heat and let cook 5 more minutes. Remove the pork and check temperature (should be 145-150 degrees). Let rest for at least 5 minutes. Cut into 1/2″ slices.
*This applies to any marinade, rub, or other seasoning method.