The 2019 Kia Optima generally holds about 5 quarts of engine oil with a filter for the standard 2.4-liter engine, while the turbocharged 2.0-liter variant requires about 5.4 quarts. The exact amount depends on the engine option and whether the calculation includes the filter.
In 2019, the Optima was offered with two four-cylinder engines: a naturally aspirated 2.4L GDI and a turbocharged 2.0L GDI. Oil capacity differs by engine, and some trims or service conditions can affect the precise measurement. Always verify with the owner's manual or a Kia dealership if you're unsure.
Oil capacities by engine
The following capacities reflect typical values used by Kia for these engine options. Include the oil filter in the measurement and use new filters during changes.
- 2.4L I4 GDI: 5.0 quarts (with filter)
- 2.0L Turbo I4 GDI: 5.4 quarts (with filter)
If you’re uncertain which engine your Optima has or if it has been modified, consult the owner's manual or a certified Kia technician to confirm the exact oil capacity for your vehicle.
Oil type and maintenance
Kia generally recommends Synthetic 5W-30 oil for the Optima, though climate and mileage can influence the best choice. Use the viscosity and change interval specified in your owner's manual, and always fill to the correct oil level with the engine off on a level surface.
Summary
For the 2019 Kia Optima, plan on about 5.0 quarts of engine oil with a filter for the 2.4L engine and around 5.4 quarts for the 2.0L turbo. Always confirm the exact capacity for your specific trim and engine in the manual, and use the recommended synthetic oil for optimal engine protection.