My 2003 Mountaineer, haven't changed a light bulb or antifreeze since I bought it new in 2003.
No new bulbs and no changing of the antifreeze. SUV has 108,000 + miles on it. Other than the other problems with it. Changed the battery on it in 2010. This battery is 6 years old, still kicking.
Try to keep your questions to one post/thread, it makes it easier for us to follow your logic.
Sounds like you live a lucky life! I would give the car a treat and do some maintenance - Coolant is long overdue for a change and other systems may also need attention if you intend to keep the car. I am assuming you have regularly changed the oil and oil filter.
Looking for a Used Mountaineer in your area?
CarGurus has 1,443 nationwide Mountaineer listings starting at $995.
Search Mercury Mountaineer Questions
Mercury Mountaineer Experts