Kia Optima Oil Type & Capacity
GarageDex's oil-spec data shows the Kia Optima takes 5W-20 or 5W-40 engine oil, about 4.3-5.1 qt with a filter change, on 2020 models. Older ones take a different grade - 2019 models use 5W-30 or 5W-40 (4.8-5.1 qt) - so check your year in the table below.
Oil by model year
| Model years | Oil type | Capacity | Buy |
|---|---|---|---|
| 2020 | 5W-20 / 5W-40 | 4.3-5.1 qt | Shop 5W-20Shop 5W-40 |
| 2019 | 5W-30 / 5W-40 | 4.8-5.1 qt | Shop 5W-30Shop 5W-40 |
| 2017-2018 | 5W-30 / 5W-40 | 4.3-5.1 qt | Shop 5W-30Shop 5W-40 |
| 2016 | 5W-30 / 5W-40 | 4.8-5.1 qt | Shop 5W-30Shop 5W-40 |
| 2015 | 5W-30 / 5W-40 | 5.1 qt | Shop 5W-30Shop 5W-40 |
| 2014 | 5W-30 / 5W-40 | 5.3 qt | Shop 5W-30Shop 5W-40 |
| 2012-2013 | 5W-30 / 5W-40 | 4.9 qt | Shop 5W-30Shop 5W-40 |
| 2011 | 5W-30 | 4.9 qt | Shop 5W-30 |
| 2010 | 5W-30 | 4.8-5 qt | Shop 5W-30 |
| 2008-2009 | 5W-30 | 4.5-4.8 qt | Shop 5W-30 |
| 2007 | 5W-30 | 4.2-4.8 qt | Shop 5W-30 |
| 2006 | 5W-30 | 4.4-5.1 qt | Shop 5W-30 |
| 2005 | 5W-30 | 4.5-5.1 qt | Shop 5W-30 |
| 2003-2004 | 10W-30 | 4.5-5.1 qt | Shop 10W-30 |
Capacity is with a filter change and can vary by engine - open your exact year below for the per-engine figures and our sources. Shop links go to Amazon, and we may earn a commission at no extra cost to you.
Every Optima year
Frequently asked
What kind of oil does a Kia Optima take?
GarageDex's oil-spec data shows the Kia Optima takes 5W-20 or 5W-40 engine oil, about 4.3-5.1 qt with a filter change, on 2020 models. Older ones take a different grade - 2019 models use 5W-30 or 5W-40 (4.8-5.1 qt) - so check your year in the table below.
How many quarts of oil does a Kia Optima take?
About 4.3-5.1 qt with a filter change on 2020 models, and 4.8-5.1 qt on 2019 models. Capacity varies by engine, so check your exact year for the per-engine figure - and finish on the dipstick rather than pouring in the full amount.
Does the oil type change by year on the Kia Optima?
Yes. We record 14 different factory specs across the years we cover - 2020: 5W-20/5W-40; 2019: 5W-30/5W-40; 2017-2018: 5W-30/5W-40. Use the table above and confirm against your owner's manual.
Sources. The oil grade and capacity for 18 of 18 model years is checked against a cited source, most often cararac - Kia Optima, AMSOIL lookup guide - 2020 Kia Optima, 1.6L 4-cyl turbo and AMSOIL lookup guide - 2020 Kia Optima, 2.0L 4-cyl turbo. Each year page lists its own sources.
Last verified 2026-06-21. Maintained by Matan B., who runs GarageDex. How we verify.