2018 Hyundai Ioniq Oil Type & Capacity
The 2018 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 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 — 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). |
Buy the right oil
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More specs & repair guides for your Ioniq
2018 Hyundai Ioniq factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site 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 2018 Hyundai Ioniq take?
The 2018 Hyundai Ioniq takes 0W-20 motor oil (SAE 0W-20 API SN (or above) or ACEA C2), per the factory service manual.
How much oil does a 2018 Hyundai Ioniq take?
The 2018 Hyundai Ioniq holds 4.0 quarts with a filter change.
Can I use synthetic oil in my 2018 Hyundai Ioniq?
Yes. 0W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2018 Hyundai Ioniq. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.