4) Clean the air filter regularly
When it comes to the car we use every day, or almost every day, it is of paramount importance to keep an eye on the maintenance of each of its components. In fact, poor maintenance could affect gas mileage. Checking the engine oil, the presence of water in the radiator and even cleaning the air filter regularly are all good practices that serve to increase the life of the car. Always check tire pressure as well, in winter as in summer.