How do I improve my Kia ProCeed's gas mileage?

I recently bought a Kia ProCeed and I have been trying to improve its gas mileage. I have been looking into upgrading the engine and installing a new exhaust system. However, I am not sure if these modifications will actually improve my gas mileage. Can someone give me any advice on how to improve my Kia ProCeed's gas mileage?

Upgrading your engine and installing a new exhaust system may not necessarily improve your gas mileage. Instead, focus on practicing good driving habits such as avoiding excessive speeding and accelerating slowly. Also, make sure to keep your tires properly inflated and perform regular maintenance on your vehicle.

I have found that using cruise control on long highway drives can significantly improve gas mileage. Also, consider using a fuel efficiency additive in your gas tank. However, be sure to do thorough research and choose a trusted brand.

In addition to the previous suggestions, try to minimize your car's weight by removing unnecessary items from the trunk. Also, avoid idling for long periods of time and combine errands into one trip to reduce mileage.