See also:

Kia Soul owners manual
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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 ...

Owner maintenance
inspections that should be performed by the owner or an authorized KIA dealer at the frequencies indicated to help ensure safe, dependable operation of your vehicle. Any adverse conditions should ...