🧪Fluid Capacities

Subaru WRX STI Type RA Fluid Capacities

Factory fluid capacity for the Subaru WRX STI Type RA.

Last updated: 2026-10-30 • Reading time: 8 min • By AllOEMManuals Editorial Team

Quick Answer

2018 Subaru WRX STI Type RA: 3.55 OZS. (0.1 L) — DH-PR (ZXL200PG).

GenerationYearsTop spec
201820183.55 OZS. (0.1 L) — DH-PR (ZXL200PG)

This vehicle's factory manual

The spec is above. This opens the 2018 Subaru WRX STI Type RA factory book. Use another year if yours is older.

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Subaru WRX STI Type RA maintenance schedule

Factory Manual ConfirmationFluid Capacities

Know the exact fluid capacities job for your Subaru WRX STI Type RA

2018 Subaru WRX STI Type RA: 3.55 OZS. (0.1 L) — DH-PR (ZXL200PG).

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

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Open the factory manual above to confirm the exact engine before ordering parts.
Air Cond Compressor Oil3.55 OZS. (0.1 L) — DH-PR (ZXL200PG)
Air Cond Refrigerant1.05 LBS. (0.47 KG) — HFC-134a
Automatic Transmission Fluid13.10 QTS. (12.39 L) — SUBARU High Torque CVT Fluid
Brake Fluid— FMVSS No. 116 DOT 3 or DOT 4 Brake Fluid
Clutch Fluid— FMVSS No. 116 DOT 3 or DOT 4 Brake Fluid
Differential Gear Oil (STI,STI Limited,STI Type RA)1.10 QTS. (1.04 L) — API - GL-5, SAE 75W-90 gear Oil
Engine Coolant (STI,STI Limited,STI Type RA)8.20 QTS. (7.76 L) — SUBARU Super Coolant
Engine Oil (STI,STI Limited,STI Type RA)4.20 QTS. (3.97 L) — API SN or SM, ILSAC GF-5 or GF-4 SAE 5W-30 Synthetic Oil Specified
Fuel Tank15.90 GALS. (60.18 L)
Manual Transmission Fluid (STI,STI Limited,STI Type RA)4.30 QTS. (4.06 L) — API - GL-5, SAE 75W-90
Power Steering Fluid0.70 QTS. (0.66 L) — SUBARU Automatic Transmission Fluid
Windshield Washer Fluid— Windshield Washer Fluid

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Subaru WRX STI Type RA Fluid Service Kit

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One-Trip Shopping List

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Frequently Asked Questions

What fluid capacities does a Subaru WRX STI Type RA use?
2018 Subaru WRX STI Type RA: 3.55 OZS. (0.1 L) — DH-PR (ZXL200PG).
Why do fluid capacities vary by generation for the Subaru WRX STI Type RA?
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.

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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: 2026-10-30

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