Preheat the grill to 225 degrees F (105 degrees C). Add some chunks of maplewood with the hot coals for smoking.
Remove the membrane from the Spare Ribs (2 racks). Rub them with Vegetable Oil (4 Tbsp) and then the Barbecue Rub (½ cup).
Grill for 1 hour, then prepare the mop sauce.
Mix together the Barbecue Rub (4 Tbsp), Barbecue Sauce (½ cup), Water (1 cup), and Distilled White Vinegar (1 cup) to create mop sauce. Heat the sauce on a stovetop until combined.
Mop the sauce on the ribs and continue to cook for another 3 ½ hours. Make sure to mop the sauce every 1 hour on the ribs.
With a toothpick, pierce the meat in different places. If it goes all the way through, then the ribs are done.
Remove the ribs from the grill and place them on a tray. Wrap aluminum foil around the ribs and let them rest for 30 minutes. Serve with sauce of choice and enjoy!