I inject my turkey with a mixture of orange/lemon juice, olive oil and fresh herbs, and let marinate in the refrigerator for up to 6 hours.
Afterwards rub turkey with butter, poultry seasoning, salt, black peppercorn, and fresh thyme, rosemary, and basil.
I then stuff the cavity with sliced onions, garlic, celery, and more fresh rosemary, thyme and basil.
Baste turkey every 45 minutes with the juices that are at the bottom of the roasting pan.