Mercury Mountaineer oil specs by year
Mercury Mountaineer oil specs changed across the 2005–2010 range. The most recent checked year uses 5 qt of 5W-30. Select the exact year to see the checked capacity, viscosity, and filter for that model year.
Multiple engine options: The Mercury Mountaineer was offered with 2 engine options across its history.
Open the exact year page and select your engine to see the correct capacity and viscosity for your vehicle.
| Year | Capacity | Oil type | Filter | Page |
|---|---|---|---|---|
| 2010 | 5 qt | 5W-30 | WIX 51372; AMSOIL EA15K01; AMSOIL EA15K02 Verified fit | Open record → |
| 2009 | 5 qt | 5W-30 | WIX 51372; AMSOIL EA15K01; AMSOIL EA15K02 Verified fit | Open record → |
| 2008 | 5 qt | 5W-30 | WIX 51372; AMSOIL EA15K01; AMSOIL EA15K02 Verified fit | Open record → |
| 2007 | 5 qt | 5W-30 | WIX 51372; AMSOIL EA15K01; AMSOIL EA15K02 Verified fit | Open record → |
| 2006 | 5 qt | 5W-30 | WIX 51372; AMSOIL EA15K01; AMSOIL EA15K02 Verified fit | Open record → |
| 2005 | 6 qt | 5W-20 | WIX 51372; AMSOIL EA15K01; AMSOIL EA15K02 Verified fit | Open record → |
Mercury Mountaineer oil spec changes by year
Checked records show 1 spec change across the 2005–2010 range. 2006: capacity and viscosity changed from 6 qt / 5W-20 to 5 qt / 5W-30 (vs 2005). Open the exact year page for the full source notes before buying.
- 2006: capacity and viscosity changed to 5 qt / 5W-30 (was 6 qt / 5W-20 in 2005). Open 2006 record →
Mercury Mountaineer oil — frequently asked questions
- What oil does the Mercury Mountaineer take?
- The Mercury Mountaineer oil spec has changed across model years. The most recent checked year uses 5 qt of 5W-30. Use the year table above to find the spec for your specific model year.
- Does the Mercury Mountaineer oil capacity change across years?
- Yes. Checked records show 1 capacity change across the 2005–2010 range. Use the year table above to find the exact capacity for your model year and confirm in your owner's manual.
- Does the Mercury Mountaineer have different oil specs for different engines?
- Yes. The Mercury Mountaineer has been offered with multiple engine options (4.0L V6, 4.6L V8). Each engine can have a different oil capacity and viscosity. Open the exact year page, select your engine, and confirm specs before buying.
- What oil filter fits the Mercury Mountaineer?
- The most recent checked year lists WIX 51372; AMSOIL EA15K01; AMSOIL EA15K02 as a compatible oil filter for the Mercury Mountaineer. Filter part numbers can change across model years — open the exact year page for the source-checked part number for your year.
Look up a specific Mercury Mountaineer year
Select a model year to open the exact checked oil fitment record before ordering.