I have changed the oil twice in my EX. Both times with new filters, running it and checking the dipstick after it sits, the oil is exactly at the full mark with 6 qts. The first time I changed it I put in the 6.45 qts as my owners manual says and it was way over full. Had to drain out the .45. I am on a flat floor and let both the drain plug and the filter canister drain completely.