How to maintain the engine of a Volkswagen Polo?

I'm having issues with my Volkswagen Polo's engine and I'm not sure how to properly maintain it. Can anyone provide some advice or tips?

Regularly check and replace your engine oil for optimal performance.

Don't forget to also change your air and fuel filters to help keep your engine clean.

Make sure to have your spark plugs checked or replaced as needed.

Follow the recommended maintenance schedule in your owner's manual to ensure your engine stays in top shape.

Consider using a fuel additive to keep your engine running smoothly.