How to improve fuel efficiency in a Toyota Hilux?

I recently purchased a Toyota Hilux and noticed my fuel expenses are quite high. How can I improve the fuel efficiency of my truck without sacrificing its performance?

Regularly maintain your truck and ensure that the air filter, spark plugs, and fluids are always in good condition.

Avoid unnecessary idling and try to keep a constant speed while driving.

Consider investing in a fuel economy tuning chip or upgrade your exhaust system for better performance.