Generally speaking, 5w30 is fine for most cars. If you have a booklet in your glovebox, it will probably say in there. Also, if in doubt try asking a clerk at an auto parts store. Or you could try asking the dealer you purchased your car at.
The 2013 Hyundai Genesis-Coupe has double overhead cam (DOHC).
The 2014 Hyundai Genesis-Coupe has double overhead cam (DOHC).
The 2012 Hyundai Genesis-Coupe has double overhead cam (DOHC).
The 2013 Hyundai Elantra-Coupe has double overhead cam (DOHC).
The 2010 Hyundai Genesis-Coupe has double overhead cam (DOHC).
The 2014 Hyundai Elantra-Coupe has double overhead cam (DOHC).
The 2011 Hyundai Genesis-Coupe has double overhead cam (DOHC).
The 2010 Hyundai Accent has double overhead cam (DOHC).
The 2011 Hyundai Accent has double overhead cam (DOHC).
The 2001 Hyundai Accent has single overhead cam (SOHC).
The 2012 Hyundai Accent has double overhead cam (DOHC).
The 2005 Hyundai Accent has double overhead cam (DOHC).