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How to Use Test Kit
IMPORTANT: Measure time precisely to obtain the correct
test results. Use a stop watch or watch with a second
hand. If the reagent color change is checked too early
or too late, correct measurement results will not be
obtained. If coolant is maintained based on incorrect
check data, damage to the engine may result.
1. Use coolant collected from the radiator or the engine
drain cock for checking. Wait to cool the collected
coolant temperature to 10 to 54 °C (50 to 129.2 °F) before
checking.
2. As soon as one test paper is taken out of the plastic
container, close the cover correctly. Do not touch the
area coated with the reagent. If the area has already
changed to light brown use another test paper.
3. Dip the test paper into the collected coolant for one
second. After taking up the test paper, desiccate the
extra coolant.
4. Wait 45 seconds. Then, compare the changed reagent
color on the test paper with the color specimen and
determine the coolant concentration by following
procedures.
1) Take a record of the anti freeze concentration by
comparing the color on reagent section (1) with the
anti freeze color specimen printed on the test paper
plastic box.
2) Take a record of concentration by comparing
the color on reagent section (2) with the SODIUM
MOLYBDATE color specimen printed on the test
paper plastic box.
3) Take a record of concentration by comparing
the color on reagent section (3) with the SODIUM
NITRITE color specimen printed on the test paper
plastic box.
5. Complete all color comparison check within 75 seconds
after dipping the test paper into the coolant.
MAINTENANCE
6. In case the reagent color corresponds to
that between the color specimens, take the
intermediate value. If it is difficult to determine
which value should be taken, adopt the lighter
color side concentration as a safer value.
7. Using the concentration check table, find the
intersection between the recorded SODIUM
MOLYBDATE concentration and the SODIUM
NITRITE concentration.
This intersection shows the coolant additive agent
concentration per 3.78 L (1 US gal) of the coolant.
8. The colored concentration values in the
concentration check table printed on the test
paper box represents the values to be applied
when the LLC concentration is 50%. When the LLC
concentration is 40% or less, do not determine by
color. Determine by figure values.
9. Record the measured coolant additive agent
concentration value on the maintenance record
sheet as reference data when performing next
maintenance services.
7-90
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