Place pork on large piece of plastic wrap. Rub tenderloin with oil; sprinkle oregano and lemon pepper evenly over surface. Wrap tightly in the plastic wrap; refrigerate for 2 hours or overnight.Â
Grill tenderloin, uncovered, over direct heat for 20 minutes or until internal temperature reaches 145 degrees F.*, turning tenderloin over halfway during grilling. Transfer tenderloin to cutting board. Loosely cover with foil; let rest for 5-10 minutes. To serve, remove string and cut into 1/4-inch-thick slices.Â