🧪Fluid Capacities

Hyundai Ioniq Electric Fluid Capacities

Factory fluid capacity for the Hyundai Ioniq Electric.

Last updated: 2026-10-28 • Reading time: 8 min • By AllOEMManuals Editorial Team

Quick Answer

2020-2021 Hyundai Ioniq Electric: 6.34 OZS. (0.18 L) — POE.

GenerationYearsTop spec
2020-20212020-20216.34 OZS. (0.18 L) — POE
2017-20192017-20196.34 OZS. (0.18 L) — POE

This vehicle's factory manual

The spec is above. This opens the 2020 Hyundai Ioniq Electric factory book. Use another year if yours is older.

Open the 2020 Hyundai manual

Hyundai Ioniq Electric maintenance schedule

Factory Manual ConfirmationFluid Capacities

Know the exact fluid capacities job for your Hyundai Ioniq Electric

2020-2021 Hyundai Ioniq Electric: 6.34 OZS. (0.18 L) — POE.

Fluid type and capacity can change by engine, drivetrain, and transmission. Verify the exact branch before filling anything. Once the spec is confirmed, use the supplies and purchase links below to build the full one-trip shopping list before you start the repair.

Exact Vehicle Check

The button opens the factory book for this vehicle. Use the engine picker only when your trim is not the one this page already matched.

Open the factory manual above to confirm the exact engine before ordering parts.

2020-2021

Air Cond Compressor Oil (Electric)6.34 OZS. (0.18 L) — POE
Air Cond Refrigerant (Electric)1.21 LBS. (0.54 KG) — R-134a
Automatic Transmission Fluid (Electric,Automatic EDT Trans)— 70W, API GL-4 TCGO-9 (MS517-14)
Brake Fluid— FMVSS116 DOT 3 or DOT 4 Brake Fluid
Engine Coolant (Electric)— Designated coolant water for electric vehicles
Notes
  • →Capacity is between: 1.00 - 1.10 qt.
  • →As required.
  • →Capacity is between: 4.33 - 4.44 qt.
  • →Capacity is between: 4.86 - 4.97 qt.

2017-2019

Air Cond Compressor Oil (Electric)6.34 OZS. (0.18 L) — POE
Air Cond Refrigerant (Electric)1.21 LBS. (0.54 KG) — R-134a
Automatic Transmission Fluid (Electric,Automatic EDT Trans)— 70W, API GL-4 TCGO-9 (MS517-14)
Brake Fluid— FMVSS116 DOT 3 or DOT 4 Brake Fluid
Engine Coolant (Electric)— Mixture of antifreeze and water (Phosphate-based Ethylene glycol coolant for aluminum radiator)
Notes
  • →Capacity is between: 1.00 - 1.10 qt.
  • →As required.
  • →Capacity is between: 4.33 - 4.44 qt.
  • →Capacity is between: 4.86 - 4.97 qt.

Manual already checked Amazon for you

You came here for the exact spec. Now here is the exact part — plus the two things people always forget and have to run back to the store for.

The Exact Part
Verified Fit

Hyundai Ioniq Electric Fluid Service Kit

Buy all the fluids your Hyundai Ioniq Electric needs in one cart.

We earn a small commission if you buy through these links — at zero extra cost to you. We only suggest items that match the factory specs on this page.

Fluids — Manual's Parts List

Everything for a full fluid service weekend.

Vehicle-Scoped Amazon Search

Opens Amazon with Hyundai Ioniq Electric prefilled so you can confirm fitment and avoid wrong parts.

Shop Exact Match on Amazon

Get everything at once

One search shows all of the above on a single page.

See All on Amazon

Links go to Amazon via our affiliate store (aiautorepair-20). We earn a small commission at no extra cost to you — it keeps the site running and the data free.

One-Trip Shopping List

Recommended supplies and tools for this job, grouped so you can buy everything before the repair starts.

Frequently Asked Questions

What fluid capacities does a Hyundai Ioniq Electric use?
2020-2021 Hyundai Ioniq Electric: 6.34 OZS. (0.18 L) — POE.
Why do fluid capacities vary by generation for the Hyundai Ioniq Electric?
Different engine options, transmission types, and cooling system designs across model years change total fluid volumes. Always use the capacity listed for your exact year and engine code — do not guess across generations.

Get the Complete Maintenance Schedule for Hyundai Ioniq Electric

Oil, filters, belts, brakes, and fluid intervals sent to your inbox. Unsubscribe anytime.

Not sure you want to DIY? Compare local shop pricing first.

Author & Review

Published by AllOEMManuals, founded by Lyndon Bedford, an automotive technician with 20 years of experience. He owned and operated a mechanic shop in Hurst, Texas from 2014 to 2022 and continues hands-on repair work.

Content may combine manual references, general repair templates, and AI-assisted drafting. Confirm the source, vehicle configuration, and applicability before working. Report corrections through our contact page.

Last updated: 2026-10-28

Need a full step-by-step repair guide?

Start Free AI Diagnosis →

100% Free — No signup required