See also:

Convenience
The Kia Rio's fuel tank will need to be replenished more often than the unit in the average sedan. ...

Introduction
How to use this manual Vehicle break-in process ...

Fuel requirements
Gasoline engine (unleaded) Your new Kia vehicle is designed to use only unleaded fuel with a minimum Octane Rating of 87 Anti-Knock Index (AKI). NOTICE NEVER USE LEADED FUEL. The use of leaded ...