How to improve fuel efficiency in a Kia Soul?

I just bought a Kia Soul and I love it, but I'm looking for ways to improve its fuel efficiency. Any tips or tricks?

One way to improve fuel efficiency is by maintaining proper tire pressure. Under-inflated tires can cause decreased fuel efficiency.

Another tip is to avoid excessive idling. If you're going to be stopped for more than 30 seconds, it's more efficient to turn off your engine.

Making sure your air filter is clean can also improve fuel efficiency. A dirty air filter can restrict airflow and decrease efficiency.