See also:

Explanation of scheduled maintenance items
Engine oil and filter The engine oil and filter should be changed at the intervals specified in the maintenance schedule. If the car is being driven in severe conditions, more frequent oil and fi ...

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 ...

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 ...