The Rideau isn't just a canal cut (only 10% is man-made), it's a waterway combining canals, rivers and lakes. This makes the Rideau a wonderful blend of urban, rural and natural landscapes. You can see million dollar homes, quaint cottages, and loons swimming in a sheltered, undisturbed bay, all in the same day.
You have do at least what's in the manual (to maintain warranty coverage). More often than that is up to you. With most drivers, the oil change light will come on before 6k miles. I change mine anywhere from 3k to 5k - all depending on convienience for me. 2009 Chrysler T&C Touring 4.0L
If you're nervous about going 10,000 miles or more between oil changes, then do it every six months, when you probably should also have your tires rotated (also explained in your owner's manual). GM says to change your oil at least once a year even if the service indicator warning light doesn't come on.