Why is my Kia Sorento's fuel efficiency decreasing?

I recently noticed that my Kia Sorento's fuel efficiency has been decreasing. I used to get good mileage, but now I have to fill up more frequently. What could be causing this issue?

There could be several reasons for the decrease in fuel efficiency. First, check your tire pressure as under-inflated tires can lead to decreased gas mileage. You may also want to have a mechanic check the air filter and fuel injectors, as they can get clogged and affect fuel efficiency. Finally, try to avoid unnecessary idling and accelerating too quickly, as these habits can also contribute to lower mileage.

It's possible that winter weather is impacting your car's fuel efficiency. Cold temperatures can cause the engine to work harder and use more fuel. To improve your mileage, try keeping your car in a warm garage or use a block heater to warm up the engine before driving. You can also switch to winter tires to improve handling and reduce gas consumption.

Have you recently had any maintenance done on your car? A simple mistake, such as a loose gas cap, can cause a decrease in fuel efficiency. Double check that the gas cap is on securely and try to avoid topping off your tank, as this can lead to evaporation and waste fuel.