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2020 Kia OptimaOil Type & Capacity
OEM spec from the factory service manual for the EX variant.
Quick Answer
Oil Type
$API - Latest or ACEA A5/B5, SAE 5W-30, 5W-40
Capacity (w/ Filter)
4.75 QTS.
4.49 L
Variant
EX
Note: If the API SM engine oil is not available, you can use API SN or above.
If GL-4 is not available GL-5 may be used.
This vehicle's factory manual
2020 Kia Optima: confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.
Sister site: See this spec on WhatTypeOfOil.com — our quick oil type & capacity lookup for every vehicle.
Other specs:All specs
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Frequently Asked Questions
- What type of oil does a 2020 Kia Optima take?
- The 2020 Kia Optima requires API - Latest or ACEA A5/B5, SAE 5W-30, 5W-40. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the EX configuration.
- How much oil does a 2020 Kia Optima need?
- The 2020 Kia Optima takes 4.75 QTS. (4.49 L) of engine oil with the filter replaced.
- Can I use synthetic oil in my 2020 Kia Optima?
- Yes — synthetic oil that meets the API - Latest or ACEA A5/B5, SAE 5W-30, 5W-40 specification is acceptable and often preferred for better protection and longer change intervals.
- What happens if I use the wrong oil in my 2020 Kia Optima?
- Using oil that does not meet the API - Latest or ACEA A5/B5, SAE 5W-30, 5W-40 specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.