Motorcraft 5W20 and a FL820S (which has an anti drain back valve) is all you will need. Mobil 1 in most grades is no longer a true PAO synthetic but now is a group III mineral oil. So if you think you are buying M1 and getting a true synth you are not. If you want a better oil for a little more than overpriced M1 try Redline. Motorcraft, Napa or Wix filters are all very good and all have anti drain back valves. BTW, next time you are under your car look at the oil filter then report back on how the oil drains out of it when you shut off the engine. I'd like to read that post.
'06 Tungsten Premium GT, manual, IUP, AA, SAB, Shaker 500, 18" polished Bullshitts
Eibach Pro Kit, Steeda shocks, C&L street intake, Xcal2, Brenspeed tunes, Meziere eh2o pump, Supreme GTAs, Saleen short throw shifter block, Amsoil 0W20 synthetic
Planned: driveshaft, Saleen S/C, and a few more suspension mods