•
Do not use alcohol, methanol or brine or any engine coolants
mixed with alcohol or methanol antifreeze (coolant).
Alcohol
and other liquids can cause engine damage from overheating or
freezing.
•
Do not add extra inhibitors or additives to the coolant.
These
can be harmful and compromise the corrosion protection of the engine
coolant.
•
Do not mix with recycled coolant unless from a Ford-approved
recycling process (see
Use of Recycled Engine Coolant
section).
WARNING:
To reduce the risk of personal injury, make sure the
engine is cool before unscrewing the coolant pressure relief cap.
The cooling system is under pressure; steam and hot liquid can come
out forcefully when the cap is loosened slightly.
1. Before you begin, turn the engine off and let it cool.
2. When the engine is cool, wrap a thick cloth around the coolant
pressure relief cap on the coolant reservoir (an opaque plastic bottle).
Slowly turn cap counterclockwise until pressure begins to release.
3. Step back while the pressure releases.
4. When you are sure that all the pressure has been released, use the
cloth to turn it counterclockwise and remove the cap.
5. Fill the coolant reservoir slowly
with the proper coolant mixture
(see above), to the top indicator
(full mark) on the reservoir. If you
removed the radiator cap in an
overflow system, fill the radiator
until the coolant is visible and
radiator is almost full.
6. Replace the cap. Turn until
tightly installed to prevent coolant
loss.
After any coolant has been added, check the coolant concentration (refer
to
Severe climates
later in this chapter). If the concentration is not
50/50 (protection to –34°F [–36°C]), drain some coolant and adjust the
concentration. It may take several drains and additions to obtain a 50/50
coolant concentration.
Whenever coolant has been added, the coolant level in the coolant
reservoir should be checked the next few times you drive the vehicle. If
2009 Low Cab Forward Truck
(lcf)
Supplement
USA
(fus)
Maintenance and Specifications
137
