How much transmission fluid does a 2012 Hyundai Sonata take?

7.5 quarts (7.1 liters) as a total fill for the A6LF2 6-speed automatic 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 2012 Hyundai Sonata 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.

What brake fluid does a 2012 Hyundai Sonata take?

DOT 3, per the manufacturer note. It is also printed on the brake fluid reservoir cap.

2012 Hyundai Sonata transmission fluid capacity and fluid specs

GarageDex's fluid data shows the 2012 Hyundai Sonata (G4KH 2L 4-cylinder YF) uses the A6LF2 6-speed automatic transmission, which holds 7.5 quarts (7.1 L) of fluid as a total fill. Brake fluid is DOT 3.

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

Key takeaways

Transmission: A6LF2 6-speed automatic transmission, 7.5 qt (7.1 L) total fill.
Total fill is the whole system; a drain-and-refill takes a third to half.
Brake fluid: DOT 3.
Fluid specification is not named by the source - use the owner's manual.

2012 Hyundai Sonata fluids by engine
Engine	Transmission	Total fill	Fluid spec	Brake fluid	Gear oil
G4KH 2L 4-cylinder YF	A6LF2 6-speed automatic	7.5 qt (7.1 L)	per owner's manual	DOT 3	-
G4KJ 2.4L 4-cylinder YF	A6MF2H 6-speed automatic	7.5 qt (7.1 L)	per owner's manual	DOT 3	-
G4KJ 2.4L 4-cylinder YF	A6MF2 6-speed automatic	7.5 qt (7.1 L)	per owner's manual	DOT 3	-

Fluids for the 2012 Hyundai Sonata

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.

Transmission fluidYou need about 8 quarts for a full fillShop fluid DOT 3 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 2012 Hyundai Sonata specs

All specs Engine oil Coolant capacity Maintenance schedule

Other Sonata years

2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2011

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.