Engine Coolant; Checking Engine Coolant - Ford F-750 Owner's Manual

Maintenance and Specifications
Always dispose of automotive
batteries in a responsible manner.
Follow your local authorized
standards for disposal. Call your
local authorized recycling center to
find out more about recycling
automotive batteries.
RECYCLE

ENGINE COOLANT

If your vehicle is equipped with a Caterpillar or Cummins engine,
refer to your engine operator's manual for engine coolant check and
adding instructions as well as fluid specifications and capacities.

Checking engine coolant

The concentration and level of engine coolant should be checked twice a
year to ensure proper glycol/ water concentrations. The coolant
concentration should be maintained at 50/50 coolant and distilled water,
which equates to a freeze point of -34°F (-36°C). Coolant concentration
testing is possible with a hydrometer or antifreeze tester (such as the
Rotunda Battery and Antifreeze Tester, 014–R1060). The level of coolant
should be maintained at the full mark in the coolant reservoir. If the level
falls below, add coolant per the instructions in the Adding engine
coolant section.
Your vehicle was factory-filled with a 50/50 engine coolant and water
concentration. If the concentration of coolant falls below 40% or above
60%, the engine parts could become damaged or not work properly. A
50–50 mixture of coolant and water provides the following:
• Freeze protection down to -34°F (-36°C).
• Boiling protection up to 265°F (129°C).
• Protection against rust and other forms of corrosion.
• Enables calibrated gauges to work properly.
The engine coolant should be at the full mark as shown on the engine
coolant reservoir (depending upon application).
Refer to the scheduled maintenance information for service interval
schedules.
Be sure to read and understand Precautions when servicing your
vehicle in this chapter.
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2007 F-650/750 (f67)
Supplement (supplement)
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