What is the best engine for a Ford Focus?

I am looking for advice on which engine is the most reliable for a Ford Focus. I am not familiar with the technical details and would appreciate any personal experience or recommendations.

In my experience, the 1.5L EcoBoost engine has been the most reliable for my Ford Focus. It has great fuel efficiency and a good balance of power.

I would recommend the 2.0L Duratec engine. It has been a reliable choice for many Ford Focus drivers and has a good amount of power.

For best overall performance and fuel economy, I would go with the 1.0L EcoBoost engine. It may seem small, but it packs a punch and is incredibly efficient.