What is the best way to maintain my Toyota RAV4's fuel efficiency?

I've noticed that my Toyota RAV4's fuel efficiency has been decreasing lately. What could be causing this and how can I improve it?

One possible cause for the decrease in fuel efficiency could be dirty air filters. Make sure to check and replace them regularly.

Another factor could be your driving habits. Try to drive at a consistent speed and avoid rapid acceleration and braking.

Maintaining proper tire pressure is also important for optimal fuel efficiency. Check your tire pressure regularly and make sure they are inflated to the recommended level.