How much transmission fluid does a 2006 Mercury Mountaineer take?

11.2 quarts as a total fill for the 6R60 transmission (11.2 to 13 quarts across this year's engines). 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 Mercury Mountaineer 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 Mercury Mountaineer 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.

2006 Mercury Mountaineer transmission fluid capacity and fluid specs

GarageDex's fluid data shows the 2006 Mercury Mountaineer (4.0L 6-cyl) uses the 6R60 automatic transmission, which holds 11.2 quarts of fluid as a total fill. Other engines on this year hold 11.2 to 13 quarts - see the table.

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

Key takeaways

Transmission: 6R60 automatic transmission, 11.2 qt 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.

2006 Mercury Mountaineer fluids by engine
Engine	Transmission	Total fill	Fluid spec	Brake fluid	Gear oil
4.0L 6-cyl	6R60 automatic	11.2 qt	per owner's manual	see reservoir cap	rear GL-5 75W-140 1.8 qt front GL-5 80W-90 1.37 qt transfer case 1.48 qt
4.6L 8-cyl	6R60 automatic	13 qt	per owner's manual	see reservoir cap	rear GL-5 75W-140 1.8 qt front GL-5 80W-90 1.37 qt transfer case 1.48 qt

Fluids for the 2006 Mercury Mountaineer

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 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

As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.

Other 2006 Mercury Mountaineer specs

All specs Coolant capacity Maintenance schedule

Other Mountaineer years

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.