Hyundai Sonata: Fuel requirements - IntroductionHyundai Sonata: Fuel requirements

Your new vehicle is designed to use only unleaded fuel having a pump octane number ((R+M)/2) of 87 (Research Octane Number 91) or higher.

Your new vehicle is designed to obtain maximum performance with UNLEADED FUEL, as well as minimize exhaust emissions and spark plug fouling.

CAUTION

Never add any fuel system cleaning agents to the fuel tank other than what has been specified. (Consult an authorized HYUNDAI dealer for details.)

WARNING

  • Do not "top off" after the nozzle automatically shuts off when refueling.
  • Tighten the cap until it clicks one time, otherwise the Malfunction Indicator Light “Always check that the fuel cap is installed securely to prevent fuel spillage” will illuminate.
  • Always check that the fuel cap is installed securely to prevent fuel spillage in the event of an accident.
How to use this manual
We want to help you get the greatest possible driving pleasure from your vehicle. Your Owner’s Manual can assist you in many ways. We strongly recommend that you read the entire manual. In order ...

Gasoline containing alcohol and methanol
Gasohol, a mixture of gasoline and ethanol (also known as grain alcohol), and gasoline or gasohol containing methanol (also known as wood alcohol) are being marketed along with or instead of leade ...

See also:

Engine Coolant Temperature Sensor (ECTS). Specifications
Specification Temperature Resistance (kΩ) °C °F -40 -40 48.14 -20 -4 ...

Repair procedures
Component Replacement After Deployment Before doing any SRS repairs, use the GDS Pro to check for DTCs. Refer to the Diagnosti ...

Specifications
Specifications Items Specifications Rated voltage 5V Load Max. 1mA (When head lamp lighting) Illumin ...