I have that engine in my F-150 and I use Supertech 5W-30 and the Ford filter. It takes 6-quarts and the synthetic ST is like $14 per 5-quart jug. It cost around $20 and I follow the OLM on the dash which has me changing it around 9,500 miles. I've heard evil rumors that the water pump is a real issue on your version. Just search for it on Youtube and you will find the horror stories. On the truck version, the water pump is easy to change. The oil filter is placed poorly though as it is mounted horizontally up front and it always makes a mess when you change it. Changing the coolant is an easy job too... easiest I've ever done. The plugs are not as easy as many older engines but it is about an hour of work to pull off the intake, vacuum lines and other assorted junk to swap them. That engine runs strong though and it is simple. No turbo, no direct injection, nothing fancy other than variable valve timing. I've not noticed any difference running 5W-20 vs 5W-30 either.