How Do I Improve Gas Mileage in My Audi A4?

I recently purchased an Audi A4 and I've noticed that I'm not getting as good gas mileage as I expected. What can I do to improve my gas mileage and save money on fuel costs?

First, make sure your tires are properly inflated. Under-inflated tires can decrease gas mileage by up to 0.3% for every 1 psi drop in pressure. You can find the recommended tire pressure for your Audi A4 in the owner's manual.

Another tip is to avoid unnecessary idling. If you're waiting in your car for more than 30 seconds, it's more fuel efficient to turn off the engine and restart it when you're ready to go again.