Here is a link to download your owners manual in PDF format.
http://www.motorcraftservice.com/pub.../99motog4e.pdf
Ford recommends 5w-30
Here is a link to download your maintenance schedule.
http://www.motorcraftservice.com/pub.../99nmgmg3e.pdf
Right click on the link and select SAVE AS or SAVE TARGET to save a copy on your PC.