What's the best way to increase the fuel efficiency of a Volkswagen Golf?

I recently purchased a used Volkswagen Golf and I'm concerned about its fuel efficiency. I've heard mixed reviews and I want to know the best way to improve it. Any suggestions?

Regularly maintaining your Volkswagen Golf is crucial for maintaining its fuel efficiency. Make sure to get oil changes and tune-ups as recommended by the manufacturer. This will also help prevent any potential issues down the road.

Consider investing in a fuel efficiency chip for your Volkswagen Golf. These can improve the engine's performance and help save on gas.

Adjusting your driving habits can also make a big difference in the fuel efficiency of your Volkswagen Golf. Avoid aggressive driving or unnecessary idling, and try to maintain a steady speed on the highway.