97 F150,4.2V6,88K miles.I was considering Motorcraft.I wantrd to use Castrol until I read a post here about "stuff" left on the bottom of the bottle.I do 3k mile oil change intervals and use Motorcraft filters.I also heard Shell makes Motorcraft oil,which makes me feel comfortable about that fact.Keep the input coming!
I think most people here agree Motorcraft oil is made or at least was by Conoco. I use it in my 97 F-150 5.4 and have no problems yet. 102,000 miles so far and no consumption is noticeable at all. I use either Motorcraft or Walmart Supertech filters. Also the newer Havoline made by Chevron would be another to look at. I am pretty sure almost all Walmart stores carry that one.
My pick would be Pennzoil 10w-30 for dino. I really like this oil based on the UOA's we have been seeing. Castrol GTX and Motorcraft seem to be good too. For some reason, Mobil's dinos are not too impressive.
My 98 F-150 4.2L lived its first 100k on Penn 10w-30. I then realized what changing my oil every 40 days was costing me. I then went to Mobil 1 with 5k drains and then to Schaeffer's 15w-40 with 5k drains. Now at 140k.
[ June 14, 2003, 10:13 PM: Message edited by: Neil Womack ]