How to improve gas mileage in a Audi 80?

I recently bought a used Audi 80 and have noticed that it's not getting very good gas mileage. What are some tips for improving the gas mileage on this car?

One way to improve gas mileage in your Audi 80 is to regularly check and replace your air filter. A clogged or dirty air filter can decrease gas mileage by up to 10%. It's an easy and inexpensive maintenance task that can make a big difference.

Another tip is to make sure your tires are properly inflated. Under-inflated tires can decrease gas mileage and also make your car more difficult to handle. Check your tire pressure regularly and make sure it matches the recommended pressure in your owner's manual.

Avoid aggressive driving and excessive idling. Accelerating quickly and braking harshly can decrease gas mileage. Also, if you're going to be stopped for more than a minute, it's more fuel-efficient to turn off your engine rather than let it idle.