How do I properly maintain my Ford Focus's engine?

I recently purchased a Ford Focus and want to make sure I am properly maintaining its engine to ensure longevity and optimal performance. I am not very knowledgeable about cars and want to know what I should be doing to keep my engine running smoothly. Any tips or advice would be greatly appreciated!

Regular oil changes and filter replacements are key in maintaining a healthy engine. Make sure to follow the manufacturer's recommended schedule and use high quality oil and filters. It's also important to keep up with other routine maintenance tasks such as checking and replacing spark plugs, belts, and fluids.

Another important aspect of engine maintenance is keeping it clean. Inspect and clean the engine regularly to prevent buildup of debris and grime which can damage the components and affect performance. You can also use fuel additives to help keep your engine clean.

Don't ignore warning signs such as strange noises, vibrations, or changes in performance. These could be signs of bigger issues and should be addressed right away. It's better to catch and fix a problem early on than to let it worsen and potentially cause more damage.