How much transmission fluid does a 2015 Subaru WRX take?

13.1 quarts (12.4 liters) as a total fill for the TR690 CVT transmission. A drain-and-refill without removing the pan replaces roughly a third to half of that, so refill to the level check point rather than pouring in the whole figure.

What transmission fluid does a 2015 Subaru WRX use?

The source lists only a catalog code for this year, not the OEM specification, so use the fluid named in your owner's manual or on the dipstick. This is a CVT - it needs CVT fluid, never conventional ATF.

What brake fluid does a 2015 Subaru WRX take?

Check the brake fluid reservoir cap - it states the DOT grade. DOT 3 and DOT 4 can be mixed; DOT 5 silicone fluid cannot.

2015 Subaru WRX transmission fluid capacity and fluid specs

GarageDex's fluid data shows the 2015 Subaru WRX uses the TR690 CVT transmission, which holds 13.1 quarts (12.4 L) of fluid as a total fill.

Shop transmission fluid Match the specification on the bottle to your manual

Key takeaways

Transmission: TR690 CVT transmission, 13.1 qt (12.4 L) total fill.
Total fill is the whole system; a drain-and-refill takes a third to half.
Brake fluid grade: read it off the reservoir cap.
Fluid specification is not named by the source - use the owner's manual.

2015 Subaru WRX fluids by engine
Engine	Transmission	Total fill	Fluid spec	Brake fluid	Gear oil
2.0L 4-cyl	TR690 CVT	13.1 qt (12.4 L)	per owner's manual	see reservoir cap	rear GL-5 80W-90 0.85 qt front GL-5 80W-90 1.48 qt

Fluids for the 2015 Subaru WRX

Buy fluid that states the specification your manual names. Multi-vehicle fluids list the specs they meet on the back label - if yours is not listed, it is the wrong bottle.

CVT fluidYou need about 14 quarts for a full fillShop fluid DOT 3 or DOT 4 brake fluidA quart covers a full flushShop brake fluid Fluid transfer pumpMost modern transmissions have no dipstick tube - you fill from belowShop pumps

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Other 2015 Subaru WRX specs

All specs Engine oil Coolant capacity Maintenance schedule

Other WRX years

2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016

Source: World's Best Oil (AMSOIL dealer cross-reference). Capacities are total system fills; a drain-and-refill takes less. Where no fluid specification is shown, the source lists only a catalog code, so use the specification printed in your owner's manual - the wrong transmission fluid damages a transmission.

Gear counts (for example "10-speed automatic") are from the U.S. EPA / DOE fuel economy listing for the same engine.