Why is the MPG on my Audi A2 lower than expected?

I recently purchased an Audi A2 and have noticed that the MPG (miles per gallon) is not as high as advertised. What could be causing this decrease in fuel efficiency?

One common reason for lower MPG in newer cars is the use of E10 gasoline, which contains 10% ethanol. This can decrease fuel efficiency and lead to a lower MPG. Try switching to a gasoline with no ethanol content.

Another possible reason for lower MPG in your Audi A2 could be a dirty air filter. Make sure to replace the air filter regularly to improve fuel efficiency.

An issue with the O2 sensor could also be causing lower MPG in your Audi A2. This sensor measures the amount of oxygen in the exhaust and adjusts the fuel mixture accordingly. Have it checked and replaced if necessary.