TM 5-3805-280-24-2
Fuels, Lubricants and Coolant
TESTING DIESEL ENGINE COOLANT
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Maintaining adequate concentrations of glycol and
inhibiting additives in the coolant is critical to protect the
engine and cooling system against freezing, corrosion,
and cylinder liner erosion and pitting.
Test the coolant solution at 6 month/15,000 mile low
speed operation or 12 month/25,000 mile normal
operation intervals and whenever excessive coolant is lost
through leaks or overheating to ensure the necessary
protection.
COOLANT TEST STRIPS
Coolant test strips are available from your engine
servicing dealer. These test strips provide a simple,
effective method to check the freeze point and additive
levels of your engine coolant.
Compare the results to the supplemental coolant additive
(SCA) chart to determine the amount of inhibiting
additives in your coolant and whether more John Deere
Liquid Coolant Conditioner should be added.
COOLSCANTM
For a more thorough evaluation of your coolant, perform a
CoolScanTM analysis. See your engine servicing dealer for
information about CoolScanTM.
CoolScan is a trademark of Deere & Company.
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