See also:

Vehicle identification number (VIN)
Frame number The vehicle identification number (VIN) is the number used in registering your car and in all legal matters pertaining to its ownership, etc. The number is punched on the engine c ...

Air cleaner
Element replacement Have the air cleaner element checked and replaced in accordance with the maintenance schedule. NOTICE Do not drive with the air cleaner removed; this will result in excessi ...

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 ...