2010 Mercury Mountaineer Oil Type & Capacity
The 2010 Mercury Mountaineer oil type depends on the engine: the 4.0 E, AWD takes 5W-30 (5.0 quarts qt with filter); the 4.0 E, RWD takes 5W-30 (5.0 quarts qt with filter); the 4.6 8, AWD takes 5W-20 (6.0 quarts qt with filter); the 4.6 8, RWD takes 5W-20 (6.0 quarts qt with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- 4.0 E, AWD: 5W-30, 5.0 quarts with filter
- 4.0 E, RWD: 5W-30, 5.0 quarts with filter
- 4.6 8, AWD: 5W-20, 6.0 quarts with filter
- 4.6 8, RWD: 5W-20, 6.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| 4.0 E, AWD — 4.0L Eng | SAE 5W-30 Premium Synthetic Blend Motor Oil | 5.00 QTS. | — | Use of synthetic or synthetic blend motor oil is not mandatory. Engine oil need only to meet the requirements of FORD Specification: WSS-M2C929-A (4.OL) or WSS-M2C930-A (4.6L) and API Certification mark. |
| 4.0 E, RWD — 4.0L Eng | SAE 5W-30 Premium Synthetic Blend Motor Oil | 5.00 QTS. | — | Use of synthetic or synthetic blend motor oil is not mandatory. Engine oil need only to meet the requirements of FORD Specification: WSS-M2C929-A (4.OL) or WSS-M2C930-A (4.6L) and API Certification mark. |
| 4.6 8, AWD — 4.6L Eng | SAE 5W-20 Premium Synthetic Blend Motor Oil | 6.00 QTS. | — | Use of synthetic or synthetic blend motor oil is not mandatory. Engine oil need only to meet the requirements of FORD Specification: WSS-M2C929-A (4.OL) or WSS-M2C930-A (4.6L) and API Certification mark. |
| 4.6 8, RWD — 4.6L Eng | SAE 5W-20 Premium Synthetic Blend Motor Oil | 6.00 QTS. | — | Use of synthetic or synthetic blend motor oil is not mandatory. Engine oil need only to meet the requirements of FORD Specification: WSS-M2C929-A (4.OL) or WSS-M2C930-A (4.6L) and API Certification mark. |
More factory specs & repair guides for your Mountaineer
🛞 2010 Mercury Mountaineer Tire Size & Pressure →🌧️ 2010 Mercury Mountaineer Wiper Blade Sizes →💡 2010 Mercury Mountaineer Light Bulb Sizes →📖 2010 Mercury Mountaineer Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
13.9 quarts (13.15 L) — FORD Premium Gold Engine Coolant w/bittering agent. Add the coolant type originally equipped in the vehicle.
Frequently asked questions
What type of oil does a 2010 Mercury Mountaineer take?
It depends on the engine: 4.0 E, AWD uses 5W-30; 4.0 E, RWD uses 5W-30; 4.6 8, AWD uses 5W-20; 4.6 8, RWD uses 5W-20.
What is the oil capacity of a 2010 Mercury Mountaineer?
Oil capacity depends on the engine: 4.0 E, AWD holds 5.0 quarts with filter; 4.0 E, RWD holds 5.0 quarts with filter; 4.6 8, AWD holds 6.0 quarts with filter; 4.6 8, RWD holds 6.0 quarts with filter.
How often should I change the oil in my 2010 Mercury Mountaineer?
Most 2010 Mercury Mountaineer owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — Mercury recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 2010 Mercury Mountaineer?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2010 Mercury Mountaineer. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.