Greetings. So glad I found this place. I recently inherited my father's 2007 Buick Lucerne with a 3800 Series III. Until I got it, the car was driven less than 2,000 miles a year, and garaged. I'm now using it as a daily driver and a long-haul business trip cruiser. What a joy this engine is. It needed a fresh set of everything when I got it: serpentine belt, some hoses, all fluids and filters. The amazing thing to me is that, unlike my other, newer cars, I can reach and work on nearly everything in the engine bay myself. Looks like this will be my go-to spot if I ever run into any trouble, but by all indications this engine will give me very little trouble.