How to Increase Mileage in the BMW 128I

1. Keep your BMW's engine in the best condition possible by performing regular tune-ups, oil changes and keeping the tires properly inflated. A poorly maintained vehicle will not be as efficient as a well maintained vehicle because a poorly maintained engine must work harder. Tires that are low on air also make the engine work harder because they do not roll as easily as they do when inflated to manufacturer specifications.
2. Keep a constant, steady driving speed rather than frequently accelerating and decelerating. Rough or aggressive driving, including frequent starting and stopping, decreases your fuel mileage.
3. Be conscious of the amount of weight you are transporting in your BMW. If you carry heavy items such as golf clubs in your trunk, they will decrease your car's fuel efficiency.
4. Open your windows instead of using the air conditioner when driving at low speeds. Running an air conditioner forces your motor to work harder. But at higher speeds, roll your windows up because open windows create drag that lessens fuel efficiency.
5. Do not leave your BMW idling for long periods of time. Idling gets zero miles to the gallon and produces potentially harmful emissions. Turn your BMW 128i off if you are going to be sitting in one place for more than a minute or two.