Combine the first 11 ingredients; rub desired amount over roast. Wrap and refrigerate overnight. Store leftover dry rub in an airtight container for up to 6 months., Remove roast from the refrigerator 1 hour before grilling. Prepare grill for indirect heat, using a drip pan. Add wood chips according to manufacturer’s directions., Unwrap roast and brush with oil; place over drip pan. Grill, covered, over medium-low indirect heat for 1 to 1-1/2 hours or until meat reaches desired doneness (for medium-rare, a thermometer should read 135°; medium, 140°; medium-well, 145°). Let stand for 10-15 minutes before slicing.