Appetizer: Blackstone Joe returns to the focus of many FAQs, extended oil use and how to approach it. This time Joe found an interesting connection between man and machine, and why we're not all that different when it comes to finding our limits.Main course: To change the oil, or not to change the oil -- that is the question facing many owners of aircraft, vehicles, and boats as the winter season approaches. There is no hard/fast rule for every engine, though. Before proceeding with an oil change, give this show a listen to find out if you really need to, or if it's fine to leave the oil in use until after the winter season is done for.