How much transmission fluid does a 2006 Ford Mustang take?

11.8 quarts as a total fill for the 5R55S 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 2006 Ford Mustang 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 2006 Ford Mustang take?

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

2006 Ford Mustang transmission fluid capacity and fluid specs

GarageDex's fluid data shows the 2006 Ford Mustang (4000-COLOGNE-V6 4L 6-cylinder S197) uses the 5R55S automatic transmission, which holds 11.8 quarts 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: 5R55S automatic transmission, 11.8 qt 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.

2006 Ford Mustang fluids by engine
Engine	Transmission	Total fill	Fluid spec	Brake fluid	Gear oil
4000-COLOGNE-V6 4L 6-cylinder S197	5R55S automatic	11.8 qt	per owner's manual	DOT 3	rear GL-5 75W-140 1.6 qt
4600-MODULAR-V8 4.6L 8-cylinder S197	5R55S automatic	11.8 qt	per owner's manual	DOT 3	rear GL-5 75W-140 1.6 qt

Fluids for the 2006 Ford Mustang

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 12 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 2006 Ford Mustang specs

All specs Engine oil Coolant capacity Maintenance schedule

Other Mustang years

2026 2025 2024 2023 2022 2021 2020 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2005

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.