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2021–2025 CN7 (7th generation)

2021–2025 Hyundai Elantra Oil Type and Capacity

The 2021–2025 Hyundai Elantra takes 0W-20 engine oil, 4.5 quarts with a filter change by engine. OEM filter Hyundai/Kia 26300-35505 (spin-on). Verified against factory documentation, with change intervals and aftermarket filter equivalents.

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Quick answer

The 2021–2025 Hyundai Elantra (2.0L 4-cylinder MPI (Smartstream)) takes 0W-20 engine oil, 4.5 quarts with a filter change (OEM filter Hyundai/Kia 26300-35505 (spin-on)). Other engines differ. See the table below.

2021–2025 Hyundai Elantra 2.0L 4-cylinder MPI (Smartstream) oil

High confidence
SpecValue
Viscosity0W-20
Allowed alternates5W-30 (Acceptable per Hyundai fluid chart); 0W-30 (Acceptable per Hyundai fluid chart)
Oil standardAPI SN Plus / ILSAC GF-6
Capacity (with filter)4.5 qt / 4.3 L
Synthetic requiredNo (synthetic recommended)
OEM filterHyundai/Kia 26300-35505 (spin-on)
Aftermarket filtersFram PH3675 / XG3675A (Ultra), Wix 51372, Purolator L14459
Change interval7,500 mi / 6 months (normal); 3,750 mi (severe service)
Drain plug torque29 ft-lbs

Redesigned Smartstream version of the Nu MPI engine; capacity grew slightly to 4.5 qt vs. the AD generation's 4.2 qt.

2021–2025 Hyundai Elantra 1.6L Hybrid (Smartstream + 6-speed DCT hybrid transaxle) oil

High confidence
SpecValue
Viscosity0W-20
Oil standardAPI SN Plus / ILSAC GF-6
Capacity (with filter)4 qt / 3.8 L
Synthetic requiredYes
OEM filterHyundai/Kia 26300-35505 (spin-on)
Aftermarket filtersFram PH3675 / XG3675A (Ultra), Wix 51372
Change interval7,500 mi / 6 months (normal); 3,750 mi (severe service)
Drain plug torque29 ft-lbs

Atkinson-cycle hybrid engine; synthetic 0W-20 is required, not just preferred.

2021–2025 Hyundai Elantra 1.6L Turbo (Gamma T-GDI, N Line) oil

Check your manual
SpecValue
Viscosity0W-20
Allowed alternates5W-30 (Some quick-reference guides list 5W-30 as the primary spec instead of 0W-20. Confirm against your build sheet/owner's manual)
Oil standardAPI SN Plus / ILSAC GF-6
Capacity (with filter)5.1 qt / 4.8 L
Synthetic requiredYes
OEM filterHyundai/Kia 26300-35505 (spin-on)
Aftermarket filtersFram PH3675 / XG3675A (Ultra), Wix 51372
Change interval7,500 mi / 6 months (normal); 3,750 mi (severe service)
Drain plug torque29 ft-lbs

Capacity and viscosity are reported inconsistently across aftermarket lookup tools (0W-20 at 5.1 qt vs. 5W-30 at ~4.5 qt). This entry uses the figure most consistently cited by owner's-manual excerpts; verify on your dipstick/build sheet.

2021–2025 Hyundai Elantra 2.0L Turbo (Elantra N) oil

High confidence
SpecValue
Viscosity0W-30
Oil standardAPI SN Plus (SN+)
Capacity (with filter)5.5 qt / 5.2 L
Synthetic requiredYes
OEM filterHyundai/Kia 26300-2M807 (cartridge; N-specific. Do not substitute the MPI spin-on filter)
Change interval6,000 mi / 6 months (normal, per N-model factory schedule, shorter than the rest of the lineup); track use warrants more frequent changes
Drain plug torque29 ft-lbs

High-output performance variant; Hyundai specifies a shorter oil interval than other Elantra engines given the higher boost and track-capable use case.

Which Hyundai Elantra model years does this cover?

These oil specifications apply to every Hyundai Elantra built from 2021 through 2025 — the CN7 (7th generation), compact sedan. Nothing in this specification changes between those model years. Pick your year for the engines it offered, what changed that year, and the problems recorded against it.

What changed during the 2021–2025 Hyundai Elantra

  • 2021CN7 generation launch; 2.0L MPI, Hybrid, and 1.6T N Line all available at launch
  • 2022Elantra N added (2.0L turbo, 276 hp); manual or 8-speed wet DCT
  • 2023–2024Facelift with revised front fascia and updated infotainment; N gets minor suspension/software tweaks
  • 2025Carryover year; Elantra Hybrid continues into the following model year per Hyundai's 2026 lineup

2021–2025 Hyundai Elantra oil: common questions

How many quarts of oil does a 2021–2025 Hyundai Elantra take?

It depends on the engine. The 2.0L 4-cylinder MPI (Smartstream) takes 4.5 quarts; The 1.6L Hybrid (Smartstream + 6-speed DCT hybrid transaxle) takes 4 quarts; The 1.6L Turbo (Gamma T-GDI, N Line) takes 5.1 quarts; The 2.0L Turbo (Elantra N) takes 5.5 quarts, all figures include a new filter.

What kind of oil does a 2021–2025 Hyundai Elantra take?

0W-20 meeting API SN Plus / ILSAC GF-6. Other engines in this vehicle may differ; see the table above.

Can you use a different viscosity in a 2021–2025 Hyundai Elantra?

The manufacturer also permits 5W-30 (Acceptable per Hyundai fluid chart), 0W-30 (Acceptable per Hyundai fluid chart). Anything outside that list is a decision you are making against the factory specification.

How often does a 2021–2025 Hyundai Elantra need an oil change?

7,500 mi / 6 months (normal); 3,750 mi (severe service). Short trips, towing, extended idling, and dusty or very cold conditions all put the vehicle on the severe-service side of that interval.

What oil filter does a 2021–2025 Hyundai Elantra take?

The OEM filter is Hyundai/Kia 26300-35505 (spin-on). Common equivalents: Fram PH3675 / XG3675A (Ultra), Wix 51372, Purolator L14459. Torque the drain plug to 29 lb-ft. An overtightened plug strips an aluminium pan.

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