Don't overthink it. Any decent syn or syn blend and change twice a year. Done. Don't need to worry about going with crazy omg oil unless you are holding it at high RPM for long periods and even then...
Wal Mart Super Tech or Motorcraft for $17.99 for a 5 quart jug plus another few quarts and a $3.19 Motorcraft filter and roll.
2000 Mustang GT Steeda #0048 34k miles. 99 Cobra 4V swapped, FTBR IRS swapped, exhaust, tuned by James Gordon.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.