What is the best engine oil for a Ford Focus ST?

I just bought a new Ford Focus ST and I want to make sure I am using the best engine oil for my car's performance. Any recommendations?

I would recommend using a high-quality synthetic oil, such as Mobil 1 or Royal Purple, for maximum performance and engine protection. You can also refer to your owner's manual for the recommended oil grade for your specific model.

I have been using AMSOIL Signature Series in my Ford Focus ST and have noticed an improvement in engine response and fuel efficiency. Plus, the extended drain intervals save me money in the long run.