How do I increase the fuel efficiency of my Kia Sorento?

I recently purchased a Kia Sorento and I am concerned about my fuel efficiency. What steps can I take to improve it?

Regularly check and replace your air filter. A dirty air filter can decrease fuel efficiency by up to 10%.

Maintain proper tire pressure. Under-inflated tires can decrease fuel efficiency by 0.2% for every 1 psi drop in pressure.

Avoid aggressive driving and excessive idling. Both can greatly reduce your fuel efficiency.