Feb 26, 2011 · I was buying oil + filter for wifes Mondeo TDCi (first time), asked for 5litres, the guy checked the book and said capacity 6.0liters, 5.5 for oil + filter change 5.0 oil only. Bought 6, as above put 5 in topped up with 1/2 litre, still got the other 1/2 in the boot. Exactly the same for my car last month. SSsz7aT.