Score loin in 1-inch diamonds with a sharp knife (1/4-inch deep); place in resealable plastic bag. Combine all remaining ingredients in small bowl; pour over pork loin. Marinate 2 hours to overnight in refrigerator.
Dry pork well on all sides and place in plastic bag; refrigerate for 24 hours, turning occasionally. To roast pork, remove from marinade (save marinade and use to baste pork during baking). Scrape off excess marinade and place pork on rack in shallow roasting pan. Bake in middle level of pre-heated