Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY1998MOUNTAINEER 5.0 P, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSFLUIDS
1998 Mercury Mountaineer 5.0 P, AWD
Quick Lookups: Fluids
1998 Mercury Mountaineer 5.0 P, AWDSECTION Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Air Cond Compressor Oil | 9.00 OZS. | 0.26 L | PAG 46 | S | |||
| Air Cond Refrigerant | 1.86 LBS. | 0.84 KG | R-134a | S | |||
| Automatic Transmission Fluid | 5.0L Eng | 13.90 QTS. | 13.15 L | Automatic Transmission Fluid MERCON V | S | ||
| Brake Fluid | N/A | N/A | DOT 3 Brake Fluid | Fill to line on reservoir. | S | ||
| Differential Gear Oil | 5.0L Eng | 3.50 PTS. | 1.65 L | SAE 80W-90 Gear Oil | S | ||
| Differential Gear Oil | 5.0L Eng | Rear | 5.50 PTS. | 2.6 L | SAE 75W-140 High Performance Synthetic Rear Axle Gear Oil | Rear axles containing Synthetic Lubricant are lubricated for life. These lubricants only need to be checked or changed if there is a leak, service is needed, or the axle assembly was submerged in water. | S |
| Engine Coolant | 5.0L Eng | 12.80 QTS. | 12.11 L | 50/50 mixture of FORD Premium Cooling System Fluid and water | S | ||
| Engine Oil | 5.0L Eng | w/Filter | 5.00 QTS. | 4.73 L | SAE 5W-20 Premium Synthetic Blend Motor Oil | Refer to Engine Oil recommended applications for SAE 5W-20 and 5W-30 motor oils TSB No. 02-1-9. | S |
| Engine Oil | 5.0L Eng | w/o Filter | 4.00 QTS. | 3.78 L | SAE 5W-20 Premium Synthetic Blend Motor Oil | Refer to Engine Oil recommended applications for SAE 5W-20 and 5W-30 motor oils TSB No. 02-1-9. | S |
| Fuel Tank | 21.00 GALS. | 79.49 L | S | ||||
| Power Steering Fluid | N/A | N/A | Automatic Transmission Fluid MERCON V | Fill to line on reservoir. | S | ||
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.