See also:

Fuel Filter
A clogged filter can limit the speed at which the vehicle may be driven, damage the emission system and cause hard starting. If an excessive amount of foreign matter accumulates in the fuel tank, ...

Opening the fuel filler lid
The fuel filler lid must be opened from inside the vehicle by pushing the fuel filler lid opener button. NOTICE If the fuel filler lid will not open because ice has formed around it, tap lightly ...

Use Unleaded Gasoline
Unleaded gasoline with a Pump Octane Rating of 87 (Research Octane Number 91) or higher must be used in your Hyundai. WARNING: o Do not "top off" after the nozzle automatically shuts o ...