How to Get Better Mileage in a BMW X5 4.4


1. Use cruise control to set your car's speed, with a maximum of approximately 65 miles per hour. Gas mileage typically decreases the faster you drive.
2. Reduce any excess weight that you might have in your car. According to the U.S. Department of Energy, the miles per gallon fuel consumption of your car decreases by 2 percent for every extra 100 pounds in the vehicle.
3. Keep your engine properly tuned. Change your spark plugs and fuel filter every 30,000 miles, in addition to changing your X5's oil at 3,000- to 5,000-mile intervals. A dirty fuel filter and bad spark plugs can cause the engine to misfire and burn more fuel than necessary. Additionally, regularly clean your air filter to ensure that the engine's recommended air-to-fuel ratio is retained.
4. Make sure your tires are properly inflated, according to the inflation specifications printed on the rear door sills of your X5. The inflation specs can vary depending on the laden weight of your vehicle.