What is the most efficient way to improve fuel efficiency in a Kia ProCeed?

I recently purchased a Kia ProCeed and I am wondering what steps I can take to improve its fuel efficiency. Are there any modifications or driving habits that can help me get better mileage out of my car?

Maintain your car's tire pressure. Properly inflated tires can improve fuel efficiency by up to 3%.

Avoid aggressive driving and rapid acceleration. These habits can significantly decrease your car's efficiency.

Consider investing in a fuel efficient performance chip or adding a cold air intake to your car.