How do I improve the fuel economy of my Ford Mondeo?

I recently bought a used Ford Mondeo and have found that I'm spending a lot on fuel. Are there any tips or tricks I can use to improve the fuel economy of my car?

One way to improve fuel economy is to make sure your tires are properly inflated. Under-inflated tires can decrease fuel efficiency. Additionally, avoid idling your car for long periods of time and try to accelerate and brake smoothly.

Another tip is to regularly maintain your car. Make sure to change the air filter and spark plugs when needed, as these can affect fuel efficiency. You can also consider using fuel additives or switching to a synthetic oil.