Zetec engine gasoline consumption is a little high since it has 16 valves 30 kms by gallon is like saying competition is very fast, there are other focus that have the Split 2.0 cc engine the same one that uses the Ford Escort and this only have 8 valves and they make you average 37 km per gallon with activated air and it is very veil also, with the relationship of the automatic boxes, they are very veil, with the relationship of the automatic boxes. The work in the Ford lines, what is always recommended is to check the oil level and change the same year.
Good luck ,,,,,, Verify what motor you want to have your focus if a high consumption or low gas consumption engine ..
greetings from Honduras C, A