Mitsubishi Mitsubishi Galant 1996-2003 Fuel System Specifications

The 1996-2003 Mitsubishi Galant is designed to run on regular unleaded gasoline with an octane rating of 87. Using higher octane fuel is not necessary and will not improve performance. However, it is crucial to avoid using diesel or ethanol blends above 10%, as they can damage the engine and fuel system components.

The fuel filter in the 1996-2003 Mitsubishi Galant should be replaced every 30,000 to 40,000 miles. Regular replacement ensures optimal fuel flow and prevents contaminants from reaching the engine. If you notice reduced performance, difficulty starting, or poor fuel efficiency, inspect and replace the fuel filter as needed.

To replace the fuel pump in a 1996-2003 Mitsubishi Galant, first, disconnect the negative battery terminal. Relieve fuel system pressure by removing the fuel pump fuse and running the engine until it stalls. Remove the rear seat cushion to access the fuel pump assembly. Disconnect the fuel lines and electrical connectors, then unscrew the retaining ring to remove the old pump. Install the new pump, reassemble the components, and reconnect the battery.

Poor fuel efficiency in the 1996-2003 Mitsubishi Galant can result from several issues, including a clogged fuel filter, dirty fuel injectors, incorrect tire pressure, or a malfunctioning oxygen sensor. Regularly inspect and maintain these components to ensure optimal fuel economy. Additionally, driving habits and environmental factors can impact efficiency.

To improve fuel economy in your 1996-2003 Mitsubishi Galant, ensure regular maintenance, such as replacing air filters, spark plugs, and fuel filters. Use the recommended fuel type and keep tires properly inflated. Avoid aggressive driving and excessive idling. Additionally, removing unnecessary weight from the vehicle and using cruise control on highways can further enhance efficiency.