Hyundai Sonata Eco Coolant Type
Factory coolant type for the Hyundai Sonata Eco.
Last updated: 2026-10-28 • Reading time: 8 min • By AllOEMManuals Editorial Team
Quick Answer
2018-2019 Hyundai Sonata Eco: 6.55 QTS. (6.19 L) — 50/50 mixture of Ethylene Glycol Antifreeze and water.
| Generation | Years | Top spec |
|---|---|---|
| 2018-2019 | 2018-2019 | 6.55 QTS. (6.19 L) — 50/50 mixture of Ethylene Glycol Antifreeze and water |
| 2015-2017 | 2015-2017 | 7.50 QTS. (7.09 L) — 50/50 mixture of Ethylene Glycol Antifreeze and water |
This vehicle's factory manual
The spec is above. This opens the 2018 Hyundai Sonata Eco factory book. Use another year if yours is older.
Hyundai Sonata Eco maintenance schedule
Know the exact coolant type job for your Hyundai Sonata Eco
2018-2019 Hyundai Sonata Eco: 6.55 QTS. (6.19 L) — 50/50 mixture of Ethylene Glycol Antifreeze and water.
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.
2018-2019
- →The engine coolant should be compatible with aluminum engine parts.
2015-2017
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.
Hyundai Sonata Eco coolant
Get the exact coolant chemistry your Hyundai Sonata Eco needs. Wrong coolant = sludge and overheating.
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Coolant Service — Manual's Parts List
Flush or top-off — here is exactly what you need.
- 1Engine CoolantShop →
6.55 QTS. (6.19 L) — 50/50 mix — verify concentrate vs pre-mixed
- 2Distilled WaterShop →
If using concentrate — never use tap water
- 3Spill-Free FunnelShop →
Bleeds air from the heater core automatically
- 4Hose Clamp PliersShop →
Spring clamps are a pain without these
- 5Shop RagsShop →
Coolant is slippery — clean spills immediately
Get everything at once
One search shows all of the above on a single page.
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One-Trip Shopping List
Recommended supplies and tools for this job, grouped so you can buy everything before the repair starts.
Engine Coolant / Antifreeze
Match the color/spec (e.g. OAT, HOAT) to your car.
Spill-Free Funnel
The best way to bleed air from the cooling system.
Coolant Tester
Check the freeze and boil protection level.
Hose Clamp Pliers
Helps move spring clamps without mangling hoses.
Shop Towels
Cleanup gear for coolant drips and burps.
Project Essentials
Basic tool sets, gloves, and cleaning supplies for your Hyundai Sonata Eco so the job is ready when the parts arrive.
Frequently Asked Questions
- What coolant type does a Hyundai Sonata Eco use?
- 2018-2019 Hyundai Sonata Eco: 6.55 QTS. (6.19 L) — 50/50 mixture of Ethylene Glycol Antifreeze and water.
- Can I use universal coolant in a Hyundai Sonata Eco?
- Factory manuals specify exact coolant chemistry for the Hyundai Sonata Eco. Using the wrong coolant type can cause corrosion, overheating, or gasket damage. Always match the OEM specification exactly — do not mix incompatible coolant types.
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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