In brief, the 2020 Kia Soul typically requires synthetic motor oil with viscosity that depends on the engine: 5W-20 for the base 2.0-liter engine, and 5W-30 for the available 1.6-liter turbo. Always verify the exact specification in your owner’s manual or with a Kia dealer for your specific vehicle configuration.
Engine options and oil specifications
Two engines were offered in the 2020 Soul. The oil you use depends on which one your vehicle has:
- 2.0-liter inline-4 engine (most trims): SAE 5W-20 synthetic engine oil. Should meet API SN or newer and ILSAC GF-5 or newer; synthetic or synthetic blend is acceptable.
- 1.6-liter turbocharged engine (GT-Line Turbo): SAE 5W-30 synthetic engine oil. Should meet API SN or newer and ILSAC GF-5 or newer; synthetic is recommended.
Note: Correct oil type also depends on climate and driving style. When in doubt, always consult the owner’s manual or a Kia service adviser.
Why oil viscosity matters
Viscosity indicates how thick the oil is at a given temperature. The 5W-20 rating means the oil flows readily at cold starts, aiding startup protection and efficiency, while 5W-30 offers a bit more film strength at operating temperatures—beneficial for the turbocharged engine or hotter climates. Always use oils that meet the appropriate specification (API SN or newer, ILSAC GF-5 or newer) and ensure the oil is suitable for gasoline engines. Using non-recommended oil can affect performance and warranty coverage.
Maintenance and service tips
Follow Kia's maintenance schedule for oil changes and filter replacements. Use genuine Kia oil filters and high-quality oil in the correct grade. If you drive under severe conditions—extreme temperatures, heavy stop-and-go traffic, or frequent short trips—you may need more frequent changes as advised by a dealer or the owner’s manual.
Where to source the right oil: your local Kia dealer, authorized service centers, or reputable automotive retailers. Always verify the oil specification on the container before purchase.
Summary
The 2020 Kia Soul uses synthetic motor oil with viscosity tailored to the engine: 5W-20 for the 2.0L base engine and 5W-30 for the 1.6L turbo. Check your owner’s manual or with a Kia dealer to confirm the exact specification for your vehicle, and ensure the oil meets API SN or newer and ILSAC GF-5 or newer. Use a quality oil and change the filter at the recommended intervals to maintain performance and warranty coverage.