Page 6 of 385
Do not add friction modifier compounds or special break-in oils since
these additives may prevent piston ring seating. SeeEngine oilin the
Maintenance and Specificationschapter for more information on oil
usage.
SPECIAL NOTICES
New Vehicle Limited Warranty
For a detailed description of what is covered and what is not covered by
your vehicle’s New Vehicle Limited Warranty, refer to theWarranty
Guide/Customer Information Guidethat is provided to you along with
your Owner’s Guide.
Special instructions
For your added safety, your vehicle is fitted with sophisticated electronic
controls.
WARNING:Please read the sectionAirbag Supplemental
Restraint System (SRS)in theSeating and Safety Restraints
chapter. Failure to follow the specific warnings and instructions could
result in personal injury.
WARNING:Front seat mounted rear-facing child or infant seats
shouldNEVERbe placed in front of an active passenger airbag.
Notice to owners of pickup trucks and utility type vehicles
WARNING:Utility vehicles have a significantly higher rollover
rate than other types of vehicles.
Before you drive your vehicle, please read this Owner’s Guide carefully.
Your vehicle is not a passenger car. As with other vehicles of this type,
failure to operate this vehicle correctly may result in loss of vehicle
control, vehicle rollover, personal injury or death.
Using your vehicle with a snowplow
Do not use this vehicle for snowplowing.
Your vehicle is not equipped with a snowplowing package.
Introduction
6
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)
Page 359 of 385
Keep a record for at least one month and record the type of driving (city
or highway). This will provide an accurate estimate of the vehicle’s fuel
economy under current driving conditions. Additionally, keeping records
during summer and winter will show how temperature impacts fuel
economy. In general, lower temperatures give lower fuel economy.
Driving style — good driving and fuel economy habits
Give consideration to the lists that follow and you may be able to change
a number of variables and improve your fuel economy.
Habits
•Smooth, moderate operation can yield up to 10% savings in fuel.
•Steady speeds without stopping will usually give the best fuel
economy.
•Idling for long periods of time (greater than one minute) may waste
fuel.
•Anticipate stopping; slowing down may eliminate the need to stop.
•Sudden or hard accelerations may reduce fuel economy.
•Slow down gradually.
•Driving at reasonable speeds (traveling at 55 mph [88 km/h] uses 15%
less fuel than traveling at 65 mph [105 km/h]).
•Revving the engine before turning it off may reduce fuel economy.
•Using the air conditioner or defroster may reduce fuel economy.
•You may want to turn off the speed control in hilly terrain if
unnecessary shifting between the top gears occurs. Unnecessary
shifting of this type could result in reduced fuel economy.
•Warming up a vehicle on cold mornings is not required and may
reduce fuel economy.
•Resting your foot on the brake pedal while driving may reduce fuel
economy.
•Combine errands and minimize stop-and-go driving.
Maintenance
•Keep tires properly inflated and use only recommended size.
•Operating a vehicle with the wheels out of alignment will reduce fuel
economy.
•Use recommended engine oil. Refer toMaintenance product
specifications and capacitiesin this chapter.
Maintenance and Specifications
359
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)
Page 370 of 385
Item Capacity Ford part nameFord part number /
Ford specification
Rear axle
fluid–Conventional
differential
(9.75 inch axle)4.5 pints (2.1L)Motorcraft SAE 75W-140
Synthetic Rear Axle
Lube
5
XY-75W140-QL /
WSL-M2C192-A
Transfer case fluid
(4X4)1.6-1.8 quarts
(1.5-1.7L)Motorcraft Transfer Case
FluidXL–12 /
—
Windshield washer fluid 4.5 quarts (4.1L)Motorcraft Premium
Windshield Washer
ConcentrateZC-32-A /
WSB-M8B16-A2
Fuel tank (Standard)28.0 gallons
(106.0L)——
Fuel tank (Navigator L)33.5 gallons
(126.8L)——
1Add the coolant type originally equipped in your vehicle.2Use 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.3Indicates only approximate dry-fill capacity. Some applications may vary based on cooler size and
if equipped with an in-tank cooler.4Automatic transmissions that require MERCONLV should only use MERCONLV fluid. Refer to
scheduled maintenance informationto determine the correct service interval. Use of any fluid
other than the recommended fluid may cause transmission damage.5Your vehicle’s rear axle is filled with a synthetic rear axle lubricant and is considered lubricated
for life. These lubricants are not to be checked or changed unless a leak is suspected, service is
required or the axle has been submerged in water. The axle lubricant should be changed any time
the axle has been submerged in water.
Maintenance and Specifications
370
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)