Place the turkey, breast up, on a rack in a large roasting pan.
Rub the skin evenly with the canola oil.
If desired, place any leftover rosemary, thyme springs and sage leaves into the turkey's cavity.
Truss the turkey as desired using kitchen twine or simply tuck wings under bird.
Let the turkey stand at room temperature for about one hour.
Place a rack in the lower third of your oven and preheat to 400°F.
Roast the turkey for 30 minutes at 400F then reduce the temperature to 325F.
I like to use a probe thermometer (which many newer ovens come with) and insert into the thickest part of the breast.
Continue to roast, basting the turkey every 30 minutes with the pan juices. (Should the breast begin to cook too quickly, tent it loosely with foil.)
Cook until the breast registers 165°F
Total roasting time should be between 3 and 4 hours, depending on the size of your bird and the temperature of your oven.
Transfer the turkey to a carving board, cover loosely with foil and let rest for 20 minutes before carving.