The oil capacity in the manual is not correct. The car needs 5,75L oil. The Duratec in the Morgan has a special oil sump. 4,5L is for a serial Ford oil sump in the Mondeo e.g.
I know it because I had the same problem like you.

Last edited by 4acker; 15/08/17 08:42 PM.
2006 4/4 70th anniversary, 1985 VW 1200 50th anniversary, 1977 Vespa 50 Special, 2003 Vespa PX 200E