Mercury Mountaineer 2005 Owner's Manual page 244

Maintenance and Specifications
Fluid Ford Part
Name
Power Take-off Motorcraft SAE
Unit (PTU) 75W-90 Fuel
Efficient High
Performance
Rear Axle
Lubricant
Windshield Motorcraft
washer fluid Premium
Windshield
Washer
Concentrate
1
Add the coolant type originally equipped in your vehicle.
2
Use of synthetic or synthetic blend motor oil is not mandatory. Engine
oil need only meet the requirements of Ford specification
WSS-M2C930-A and the API Certification mark.
3
Using any transmission fluid other than those that meet the
recommended specification may cause internal transaxle damage.
4
Approximate dry fill capacity. Actual amount may vary during fluid
changes.
244
2005 Montego (mgo)
Owners Guide (post-2002-fmt)
USA_English (fus)
Application Capacity
PTU 1.9 pints (0.9L)
All 101 oz (3.0L)