2002 FORD F650 fuel tank capacity

Battery voltage gauge
Indicates battery voltage. If the
pointer moves and stays outside the
normal operating range (as
indicated by the arrows), have the
vehicle's electrical system checked
as soon as possible.
Fuel gauge
Displays approximately how much
fuel is in the fuel tank. The fuel
gauge may vary slightly when the
vehicle is in motion or on a grade.
When refueling the vehicle from
empty indication, the amount of fuel
that can be added will be less than
the advertised capacity due to the
reserve fuel.
Speedometer
Indicates the current vehicle speed.
818
EF
0
000000000
MPH
20
km/h
406080
100
120
140
160
0
10 20304050
60
70
80
90
100
Instrument Cluster
18

Installation
Note:The engine will not run properly if the fuel filter is not installed in
housing.
1. Apply a coating of clean diesel fuel to the new bevel gasket and install
it onto the fuel filter housing.
2. Install the new fuel filter element onto the cap. Place the new fuel
filter element and cap into the fuel filter housing. Allow fuel to soak into
the fuel filter element.
3. Tighten cap onto the fuel filter housing until cap contacts the housing.
4. Start the engine and check for fuel leaks.
After changing the fuel filter, the engine will purge the trapped air as it
runs. Engine may run roughly and smoke until the air is completely
eliminated.
Fuel filter replacementÐCummins B engine
Refer to your engine operator's manual for service intervals and
procedures.
ESSENTIALS OF GOOD FUEL ECONOMY
Measuring techniques
Your best source of information about actual fuel economy is you, the
driver. You must gather information as accurately and consistently as
possible. Fuel expense, frequency of fillups or fuel gauge readings are
NOT accurate as a measure of fuel economy. We do not recommend
taking fuel economy measurements during the first 1 600 km (1 000
miles) of driving (engine break-in period). You will get a more accurate
measurement after 3 000 km±5 000 km (2 000 miles-3 000 miles).
The advertised fuel capacity of the fuel tank(s) on your vehicle is equal
to the rated refill capacity of the fuel tank(s) as listed inFuel Tank
Capacitiesin this chapter. The advertised capacity is the amount of the
Indicated Capacity and the Empty Reserve combined. Indicated Capacity
is the difference in the amount of fuel in a full tank and a tank when the
fuel gauge indicates empty. Empty Reserve is the small amount of usable
fuel remaining in the fuel tank after the fuel gauge indicates empty.
The amount of Empty Reserve varies and should not be relied
upon to increase driving range. When refueling your vehicle after
the fuel gauge indicates empty, you might not be able to refuel
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202

the full amount of the advertised capacity of the fuel tank due to
the empty reserve still present in the tank.
Your vehicle may be equipped with dual fuel tanks. If so, you will have a
selector control. For information on the Dual Fuel Tank Selector Control
refer to theDriving Tipssection in the7.3 Liter Power Stroke Direct
Injection Turbo Diesel Owner's Guide Supplement.
Filling the tank
For consistent results:
²Use the same fill rate setting (low Ð medium Ð high) each time
during filling.
²Allow three automatic click-offs when filling.
²Always use fuel of a known quality, preferably a national brand.
²Have the vehicle loading and distribution the same every time.
²When refueling a vehicle equipped with dual fuel tanks, if the two
tanks are not filled equally, the fuel gauge reading may fluctuate
slightly until the fuel level between the two tanks balance out and
become equal.
Your results will be most accurate if your filling method is consistent.
Note:For vehicles equipped with dual fuel tanks, engine performance
may degrade if fuel is not added to both tanks when refueling.
Calculating fuel economy
1. Fill the fuel tank(s) completely and record the initial odometer
reading (in kilometers or miles).
2. Each time you fill the tank(s), record the amount of fuel added (in
liters or gallons).
3. After at least three to five tank fill-ups, fill the fuel tank(s) and record
the current odometer reading.
4. Subtract your initial odometer reading from the current odometer
reading.
5. Follow one of the simple calculations in order to determine fuel
economy:
²Multiply liters used by 100, then divide by total kilometers traveled.
²Divide total miles traveled by total gallons used.
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203

REAR AXLE REFILL CAPACITIES
Make and model Approximate capacity
Rockwell RS-17-144116.6L (35 pints)
Rockwell RS-17-1451, 216.6L (35 pints)
Rockwell RS-21-1451, 216.6L (35 pints)
Rockwell RS-23-1601, 218.9L (40 pints)
1Quantities listed are approximate. Fill axle until the lubricant level is at
bottom of filler hole, with vehicle on level ground.
2If hubs have been removed, add an additional 0.75 liter (1.6 pints) of
axle lubricant. Add lubricant through the axle vent.
FUEL TANK CAPACITIES
Type Approximate capacity
Single tank 246.09L (65 gallons)
Dual tank 492.18L (130 gallons)
LUBRICANT SPECIFICATIONS
Item Ford Part NameFord Part
NumberFord
Specification
Brake and
clutch fluid
(if equipped)Motorcraft High
Performance DOT
3 Motor Vehicle
Brake FluidPM-1 ESA-M6C25-A
and DOT 3
Body hinges,
hood hinges
and latches.Multi-Purpose
GreaseXGÐ4 or
F5AZ-19G209-AAESR-M1C159-A
Lock cylinders Penetrating
LubricantXL-1 N/A
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222