How long to cook hot dogs. OSCAR MAYER Franks or Wieners can be cooked in just minutes on the grill. Heat the grill to medium heat, then grill the franks 7 to 9 min. or until heated through, turning occasionally.For light varieties, grill just 5 to 7 min. or until heated through, turning occasionally.ow long to cook hot dogs. OSCAR MAYER Franks or Wieners can be cooked in just minutes on the grill. Heat the grill to medium heat, then grill the franks 7 to 9 min. or until heated through, turning occasionally.