Tires and wheels
*1 Normal load : Up to 3 persons *2 High speed : above 160 km/h (100 mph)
CAUTION
When replacing tires, use the same
size originally supplied with the
vehicle.
Using tires of a different size can damage the related parts or make it work irregularly.
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 ...
Impressive Warranty
Hyundai is Kia's corporate parent, so the Optima gets Hyundai's impressive
warranty; it includes 10-year/100,000-mile powertrain protection and
5-year/60,000-mile roadside assistance.
Kia is put ...
Engine coolant
The high-pressure cooling system has a
reservoir filled with year-round antifreeze
coolant. The reservoir is filled at the factory.
Check the antifreeze protection and
coolant level at least once ...