Hyundai Azera 2011-2014 Fuel System Specifications

The 2011-2014 Hyundai Azera is designed to run on regular unleaded gasoline with an octane rating of 87 or higher. Using higher octane fuel is not necessary but may improve performance in certain conditions. Avoid using diesel, E85, or any fuel with more than 10% ethanol, as these can damage the engine and fuel system.

The fuel system in the 2011-2014 Hyundai Azera requires regular maintenance to ensure optimal performance. Replace the fuel filter every 30,000 miles and inspect the fuel lines for leaks or damage. Use fuel system cleaners every 15,000 miles to prevent carbon buildup. Always use high-quality fuel and avoid running the tank empty to protect the fuel pump.

To replace the fuel filter in your Hyundai Azera, first, relieve the fuel system pressure by disconnecting the fuel pump fuse and running the engine until it stalls. Locate the fuel filter, usually under the car near the fuel tank. Disconnect the fuel lines and remove the old filter. Install the new filter, reconnect the fuel lines, and reattach the fuel pump fuse. Start the engine to check for leaks.

If your Hyundai Azera is experiencing poor fuel efficiency, check for common issues such as a dirty air filter, low tire pressure, or a malfunctioning oxygen sensor. Inspect the fuel system for leaks or clogs and ensure the spark plugs are in good condition. Regular maintenance, such as oil changes and using the correct fuel type, can also improve fuel efficiency.

To optimize the fuel performance of your Hyundai Azera, maintain proper tire pressure, use high-quality fuel, and avoid aggressive driving habits. Regularly replace air filters, spark plugs, and fuel filters. Keep the engine well-tuned and use fuel system cleaners periodically. Reducing vehicle weight and avoiding excessive idling can also improve fuel efficiency.