Is it possible to increase the fuel efficiency of my Audi A2?

I've been noticing a decrease in the fuel efficiency of my Audi A2 and I'm wondering if there are any steps I can take to improve it.

One of the best ways to improve the fuel efficiency of your Audi A2 is to regularly maintain the vehicle. This includes getting regular oil changes, replacing air filters, and keeping your tires properly inflated. Additionally, try to avoid excessive idling and aggressive driving.

Another factor that can greatly impact fuel efficiency is the condition of your spark plugs. If they are worn out or dirty, they can cause your car to use more fuel than necessary. Consider getting them checked and replaced if needed.

You can also try using a fuel or engine treatment to help clean out any build-up in your engine. This can improve fuel efficiency and overall performance of your car.