Mercury Mariner
Automatic transmission fluid capacity & service interval
Mercury Mariner automatic transmission fluid capacity ranges from 8,5 to 9,6 liters. Service intervals include normal use. Data covers 5 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Mariner 2.5 16V (2009-2011) |
|
| Mariner 2.5 16V AWD (2009-2011) |
|
| Mariner 3.0 V6 (2009-2011) |
|
| Mariner 3.0 V6 AWD (2009-2011) |
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| Mariner 3.0 V6 (2005-2008) |
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Additional Notes
- The Mercury Mariner 3.0 V6 for 2005-2008 carries a 9.6-liter automatic transmission fluid capacity, which is the largest figure across all configurations listed for the Mariner.
- Starting with the 2009 model year, the 3.0 V6 moved to a transaxle-type automatic unit rated at 8.5 liters dry fill, a reduction of 1.1 liters compared to the 2005-2008 transmission specification.
- A dry fill capacity refers to the total fluid volume required when filling a completely drained or newly assembled unit, as opposed to a service fill, which accounts for residual fluid remaining in the torque converter and passages after a drain.
- The 2.5 16V and 2.5 16V AWD variants, both covering 2009-2011, share an identical 8.5-liter dry fill transaxle capacity, indicating no difference in fluid volume between the two-wheel-drive and all-wheel-drive versions of that engine pairing.
- The 3.0 V6 AWD for 2009-2011 lists the 8.5-liter figure twice within its specifications, once as a general capacity and once explicitly labeled as a dry fill, suggesting the same volume applies regardless of fill context for that configuration.
- All 2009-2011 configurations across the 2.5 16V, 2.5 16V AWD, 3.0 V6, and 3.0 V6 AWD converge on the same 8.5-liter dry fill transaxle specification, while the earlier 3.0 V6 from 2005-2008 stands apart with a higher 9.6-liter figure under a transmission designation rather than a transaxle designation.
- The shift in component terminology from "transmission, automatic" in the 2005-2008 3.0 V6 row to "transaxle, automatic" in all 2009-2011 rows reflects a mechanical distinction, as a transaxle integrates the transmission and differential into a single housing, which is common in front-wheel-drive and all-wheel-drive platforms.
- All rows across the 2005-2011 Mariner automatic transmission fluid specifications are designated for normal use conditions, with no severe-use or first-change interval variants listed.