Subaru WRX Coolant Type
Factory manual coolant type & capacity for the Subaru WRX. Exact capacities and specs extracted from the LEMON service manual archive.
Last updated: 2026-10-29 • Reading time: 8 min • By AllOEMManuals Editorial Team
Quick Answer
2024 Subaru WRX coolant: 9.00 QTS. (8.51 L) — SUBARU Super Coolant Note: Distilled water is recommended for dilution. Soft water or tap water can be used alternatively. There are two types of SUBARU SUPER COOLANT: concentrated type and diluted type. SUBARU recommends Cooling system protective agent: Cooling system conditioner (part No. SOA345001),.
| Generation | Years | Top spec |
|---|---|---|
| 2024 | 2024 | 9.00 QTS. (8.51 L) — SUBARU Super Coolant Note: Distilled water is recommended for dilution. Soft water or tap water can be used alternatively. There are two types of SUBARU SUPER COOLANT: concentrated type and diluted type. SUBARU recommends Cooling system protective agent: Cooling system conditioner (part No. SOA345001), |
| 2022-2023 | 2022-2023 | 9.20 QTS. (8.7 L) — SUBARU Super Coolant Note: Distilled water is recommended for dilution. Soft water or tap water can be used alternatively. There are two types of SUBARU SUPER COOLANT: concentrated type and diluted type. SUBARU recommends Cooling system protective agent: Cooling system conditioner (part No. SOA345001), |
| 2019-2021 | 2019-2021 | 8.60 QTS. (8.13 L) — SUBARU Super Coolant |
This vehicle's factory manual
The spec is above. This opens the 2024 Subaru WRX factory book. Use another year if yours is older.
Subaru WRX maintenance schedule
Know the exact coolant type job for your Subaru WRX
2024 Subaru WRX coolant: 9.00 QTS. (8.51 L) — SUBARU Super Coolant Note: Distilled water is recommended for dilution. Soft water or tap water can be used alternatively. There are two types of SUBARU SUPER COOLANT: concentrated type and diluted type. SUBARU recommends Cooling system protective agent: Cooling system conditioner (part No. SOA345001),.
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.
2024
- →Distilled water is recommended for dilution. Soft water or tap water can be used alternatively. There are two types of SUBARU SUPER COOLANT: concentrated type and diluted type. SUBARU recommends Cooling system protective agent: Cooling system conditioner (part No. SOA345001),
2022-2023
- →Distilled water is recommended for dilution. Soft water or tap water can be used alternatively. There are two types of SUBARU SUPER COOLANT: concentrated type and diluted type. SUBARU recommends Cooling system protective agent: Cooling system conditioner (part No. SOA345001),
2019-2021
2018
2017
2016
2015
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.
Subaru WRX coolant
Get the exact coolant chemistry your Subaru WRX 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 →
9.00 QTS. (8.51 L) — SUBARU Su — 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 Subaru WRX so the job is ready when the parts arrive.
Frequently Asked Questions
- Where is this data from?
- Extracted directly from the LEMON factory service manual archive. Sources are cited per generation.
- What coolant type does a Subaru WRX use?
- 2024 Subaru WRX coolant: 9.00 QTS. (8.51 L) — SUBARU Super Coolant Note: Distilled water is recommended for dilution. Soft water or tap water can be used alternatively. There are two types of SUBARU SUPER COOLANT: concentrated type and diluted type. SUBARU recommends Cooling system protective agent: Cooling system conditioner (part No. SOA345001),.
- Can I use universal coolant in a Subaru WRX?
- Factory manuals specify exact coolant chemistry for the Subaru WRX. 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: 2026-10-29