The 2018 Kia Optima uses SAE 5w-30 or 5w-40 viscosity, fully synthetic motor oil in its 2.0 liter, 4Cylinder engine. The vehicle has an oil capacity of 4.8 US quarts.
How many quarts of oil does a 2013 Kia Optima 2.4 take?
4.9 quarts
How many quarts of oil does a 2017 Kia Optima 2.4 take?
5.1 quarts
Does 2013 Kia Optima need synthetic oil?
Kia recommends getting your 2013 Kia Optima oil & filter changed every 3,000-5,000 miles for conventional oil. Synthetic oil generally should be changed every 7,500 - 10,000 miles.