5W30 or 5W20.........

[Erich Zeppelin]

Thank's guy's, I called Ford and was informed that the 1999 Expedition takes 5W30

 

[tsgrpr97]

I read that the only reason Ford switched from 30 weight to 20 was to eek by tighter cafe regs. No mechanical differences. Next oil change, I'm switching to 30 wt.