What is the most efficient way to improve gas mileage in my Audi car?

I have noticed that my Audi car seems to have poor gas mileage compared to other cars on the market. I want to improve its efficiency to save on gas costs and reduce my carbon footprint. How can I achieve this?

To improve gas mileage in your Audi car, start by checking your tire pressure regularly. Under-inflated tires can decrease gas mileage by up to 0.3% for every 1 psi drop in pressure. Keep your tires at the recommended pressure listed in your car's manual.