See also:

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 ...

Engine compartment
1. Engine coolant reservoir ...................7-12 2. Engine oil filler cap............................7-11 3. Brake fluid reservoir ..........................7-14 4. Air cleaner................ ...

THE VERDICT
Kia won’t release pricing for the Optima for another few weeks, but we’re assured it will come in at under $20,000 to start and we expect it to undercut (slightly) the Sonata, which starts at ...