See also:

Fuel recommendations
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 nozzl ...

Safety
The Hyundai Sonata is one of only two cars on the market to have received both a Top Safety Pick designation from the Insurance Institute for Highway Safety and a five-star overall safety rating f ...

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 ...