Question: is a zetec engine better?
Answer: “Fitted with the 123bhp EcoBoost engine, the Ford Focus Zetec has enough power for overtaking and is also fun on country roads, while the car's excellent mpg figures come as a very welcome bonus.” ... It economical at 58.9mpg but not a shade on the 1.5-litre diesel engine, which is capable of a much better 74.3mpg.