What is the best way to improve the fuel efficiency of a Ford Ranger?

I recently purchased a Ford Ranger and I'm looking for ways to improve its fuel efficiency. It currently gets around 18 mpg on average, but I've heard that there are ways to increase it. Any advice would be greatly appreciated.

One way to improve your Ford Ranger's fuel efficiency is to regularly maintain your vehicle. Make sure to keep up with oil changes, check tire pressure frequently, and replace air filters when necessary.

Another way to increase your fuel efficiency is to drive at a consistent speed and avoid aggressive driving. This can save you up to 33% on fuel costs.

Consider investing in a tonneau cover for your truck bed. This can reduce drag and improve your Ranger's aerodynamics, resulting in better fuel efficiency.