What is the best way to maintain my Ford Focus's engine performance?

I recently purchased a Ford Focus and want to ensure that the engine stays in top condition. What maintenance tips and techniques should I follow to keep my car running smoothly?

Regular oil changes and tune-ups are key to maintaining your Ford Focus's engine performance. Also, be sure to check and replace air filters and spark plugs as needed.

Don't ignore any warning lights or unusual sounds coming from your engine. These could be signs of a bigger issue that should be addressed immediately.

Always use the recommended fuel grade for your Ford Focus. Using lower grade fuel can affect engine performance and potentially cause damage.