Hyundai i10 Owner's Manual page 35

Vehicle information
The fuel label is attached on the fuel filler door.
A. Octane rating of unleaded Petrol
1) RON/ROZ : Research Octane Number
2) (R+M)/2, AKI : Anti Knock Index
B. Identifiers for Petrol-type fuels
This symbol means usable fuel. Do not use any other fuel.
C. For further details, refer to the "Fuel Requirement" section in chapter 1.
2-20
OTM013030L OTM013030L