2021 Hyundai Ioniq Oil Type & Capacity: 0W-20 (4.0 quarts)
The 2021 Hyundai Ioniq takes 0W-20 motor oil — 4.0 quarts with a filter change, per the factory service manual.
Factory-spec answer
0W-20 — 4.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Hybrid Blue — Gas/Electric | SAE 0W-20 API SN (or above) or ACEA C2 | 4.00 QTS. | — | Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel economy by reducing the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure in everyday driving, but in a year's time, they can offer significant cost and energy savings. If the ACEA C2 engine oil is not available in your country, you are able to use ILSAC GF-3 (or above) or ACEA A3 (or above). |
| Hybrid Limited — Gas/Electric | SAE 0W-20 API SN (or above) or ACEA C2 | 4.00 QTS. | — | Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel economy by reducing the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure in everyday driving, but in a year's time, they can offer significant cost and energy savings. If the ACEA C2 engine oil is not available in your country, you are able to use ILSAC GF-3 (or above) or ACEA A3 (or above). |
| Hybrid SE — Gas/Electric | SAE 0W-20 API SN (or above) or ACEA C2 | 4.00 QTS. | — | Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel economy by reducing the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure in everyday driving, but in a year's time, they can offer significant cost and energy savings. If the ACEA C2 engine oil is not available in your country, you are able to use ILSAC GF-3 (or above) or ACEA A3 (or above). |
| Hybrid SEL — Gas/Electric | SAE 0W-20 API SN (or above) or ACEA C2 | 4.00 QTS. | — | Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel economy by reducing the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure in everyday driving, but in a year's time, they can offer significant cost and energy savings. If the ACEA C2 engine oil is not available in your country, you are able to use ILSAC GF-3 (or above) or ACEA A3 (or above). |
| Plug-In Hybrid Limited — Gas/Electric | SAE 0W-20 API SN (or above) or ACEA C2 | 4.00 QTS. | — | Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel economy by reducing the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure in everyday driving, but in a year's time, they can offer significant cost and energy savings. If the ACEA C2 engine oil is not available in your country, you are able to use ILSAC GF-3 (or above) or ACEA A3 (or above). |
| Plug-In Hybrid SE — Gas/Electric | SAE 0W-20 API SN (or above) or ACEA C2 | 4.00 QTS. | — | Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel economy by reducing the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure in everyday driving, but in a year's time, they can offer significant cost and energy savings. If the ACEA C2 engine oil is not available in your country, you are able to use ILSAC GF-3 (or above) or ACEA A3 (or above). |
| Plug-In Hybrid SEL — Gas/Electric | SAE 0W-20 API SN (or above) or ACEA C2 | 4.00 QTS. | — | Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel economy by reducing the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure in everyday driving, but in a year's time, they can offer significant cost and energy savings. If the ACEA C2 engine oil is not available in your country, you are able to use ILSAC GF-3 (or above) or ACEA A3 (or above). |
More factory specs & repair guides for your Ioniq
🛞 2021 Hyundai Ioniq Tire Size & Pressure →🌧️ 2021 Hyundai Ioniq Wiper Blade Sizes →💡 2021 Hyundai Ioniq Light Bulb Sizes →📖 2021 Hyundai Ioniq Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
7.07 quarts (6.69 L) — Mixture of antifreeze and water (Phosphate-based Ethylene glycol coolant for aluminum radiator)
Frequently asked questions
What type of oil does a 2021 Hyundai Ioniq take?
The 2021 Hyundai Ioniq takes 0W-20 motor oil (SAE 0W-20 API SN (or above) or ACEA C2), per the factory service manual.
What is the oil capacity of a 2021 Hyundai Ioniq?
The 2021 Hyundai Ioniq oil capacity is 4.0 quarts with a filter change.
How often should I change the oil in my 2021 Hyundai Ioniq?
Most 2021 Hyundai Ioniq owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — Hyundai recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 2021 Hyundai Ioniq?
Yes. 0W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2021 Hyundai Ioniq. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.