Until I read this forum, I've never even heard of 5W20. I've seen 5W30 a lot, but we use 10W30 on everything but our diesel motors. I don't have an Edge yet, but I learned a lot about what to use when/if I get one.
With 5W oil, would the engine oil leak or burn oil faster when the car gets high mileage such as past the 100,000 mile range being that thin?