2002 Mercury Mountaineer Oil Type & Capacity
The 2002 Mercury Mountaineer oil type depends on the engine: the 4.0 E, AWD takes 5W-30 (5.0 quarts with filter); the 4.0 E, RWD takes 5W-30 (5.0 quarts with filter); the 4.0 K, AWD takes 5W-30 (5.0 quarts with filter); the 4.0 K, RWD takes 5W-30 (5.0 quarts with filter); the 4.6 W, AWD takes 5W-20 (6.0 quarts with filter); the 4.6 W, RWD takes 5W-20 (6.0 quarts 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
- 4.0 K, AWD: 5W-30, 5.0 quarts with filter
- 4.0 K, RWD: 5W-30, 5.0 quarts with filter
- 4.6 W, AWD: 5W-20, 6.0 quarts with filter
- 4.6 W, 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 Super Premium Motor Oil | 5.00 QTS. | — | Use oil that has been certified by the American Petroleum Institute. |
| 4.0 E, RWD — 4.0L Eng | SAE 5W-30 Super Premium Motor Oil | 5.00 QTS. | — | Use oil that has been certified by the American Petroleum Institute. |
| 4.0 K, AWD — 4.0L Eng | SAE 5W-30 Super Premium Motor Oil | 5.00 QTS. | — | Use oil that has been certified by the American Petroleum Institute. |
| 4.0 K, RWD — 4.0L Eng | SAE 5W-30 Super Premium Motor Oil | 5.00 QTS. | — | Use oil that has been certified by the American Petroleum Institute. |
| 4.6 W, AWD — 4.6L Eng | SAE 5W-20 Super Premium 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-M2C153-H and the API Certification mark. |
| 4.6 W, RWD — 4.6L Eng | SAE 5W-20 Super Premium 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-M2C153-H and the API Certification mark. |
Buy the right oil
Buy 5W-30 motor oil on AmazonBuy 5W-20 motor oil on Amazon2002 Mercury Mountaineer oil filter on AmazonAs an Amazon Associate we earn from qualifying purchases made through these links.
More specs & repair guides for your Mountaineer
2002 Mercury Mountaineer factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
18.2 quarts (17.22 L) — FORD Premium Cooling System Fluid or FORD Extended Life Engine Coolant. If the vehicle's coolant is (green color) use: FORD Premium Cooling System Fluid. If it is (orange color) use: FORD Extended Life Engine Coolant.
Frequently asked questions
What type of oil does a 2002 Mercury Mountaineer take?
It depends on the engine: 4.0 E, AWD uses 5W-30; 4.0 E, RWD uses 5W-30; 4.0 K, AWD uses 5W-30; 4.0 K, RWD uses 5W-30; 4.6 W, AWD uses 5W-20; 4.6 W, RWD uses 5W-20.
How much oil does a 2002 Mercury Mountaineer take?
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; 4.0 K, AWD holds 5.0 quarts with filter; 4.0 K, RWD holds 5.0 quarts with filter; 4.6 W, AWD holds 6.0 quarts with filter; 4.6 W, RWD holds 6.0 quarts with filter.
Can I use synthetic oil in my 2002 Mercury Mountaineer?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2002 Mercury Mountaineer. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.