TM 5-3805-281-24-2
Fuels, Lubricants, and Coolant
TESTING DIESEL ENGINE COOLANT
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 600 hours or 12 month
intervals and whenever excessive coolant is lost through
leaks or overheating to ensure the necessary protection.
COOLANT TEST STRIPS
Coolant Test Kit
Coolant test strips are available from your John Deere
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
Coolant and Oil Sampler Tool
For a more thorough evaluation of your coolant, perform a
CoolScanTM analysis, where available. See your John
Deere engine distributor or servicing dealer for information
about CoolScanTM.
CoolScan is a trademark of Deere & Company.
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1923OCT971/1