What kind of oil for ford 97 aerostar?

According to the 1997 Ford Aerostar Owner Guide ( 5W-30 )

With engine oil filter change :

For the 3.0 liter V6 engine ( 4.5 U.S. quarts of 5W-30 engine oil )

For the 4.0 liter V6 engine ( 5.0 U.S. quarts of 5W-30 engine oil )