What kind of gas does a hyundai sonata hybrid take?

The Hyundai Sonata Hybrid uses regular gasoline with an octane rating of 87 or higher. Do not ever put diesel fuel or E85 into Your Sonata because it will ruin the fuel system and Your engine. When it comes to gasoline I recommend always buying the highest octane rating that You can afFord. The higher octane gives You a more complete burn in the engine and that will help prevent carbon buildup in Your engine. There are also fuels on the market that have a top tier designation. A top tier designation usually means that the gasoline has additives in it to help clean debris and sludge in the engine.