Why is my Vauxhall Corsa experiencing poor fuel efficiency?

I recently noticed that my Vauxhall Corsa is not getting the same fuel efficiency as it used to. What could be causing this and how can I improve it?

Poor fuel efficiency could be caused by a number of factors such as low tire pressure, dirty air filter, or a faulty oxygen sensor. Have you checked any of these things?

Another common reason for poor fuel efficiency is aggressive driving habits. Make sure you're not accelerating too quickly or idling for prolonged periods of time.

If none of these solutions seem to help, it could be a sign of a larger issue. I recommend taking your car to a mechanic for a diagnostic test.