4. Regular Inspections
33
Measuring the Coolant Concentration
• Special tool
The coolant concentration can be measured as follows.
1. When the engine coolant temperature is between 10 - 55 °C
(53.6 - 131 °F), drain the coolant and fill a plastic cup
halfway with it.
2. Soak the test strip in the collected coolant for 3 ~ 5 seconds
and remove the strip from the coolant. Then, shake off any
excess coolant.
3. Wait approx. 45 seconds for the color of the test strip to
change.
4. Check the color of the test strip.
EDL022153A
1) Compare the color of part (A) of the test strip with the
color in the GLYCOL/FREEZEPOINT (End pad) section
of the standard color table.
2) Compare the color of part (B) of the test strip with the
color in the MOLYBDATE (Middle pad) section of the
standard color table.
3) Compare the color of part (C) of the test strip with the
color in the NITRITE section of the standard color table.
5. Check the color of the test strip compared to the
matching color in the standard color table.
EDL022154A
1) Compare the changed color in part (A) of the pink end of
the test strip with the GLYCOL/FREEZEPOINT (End
pad) section of the standard color table on top of the
storage container to determine the concentration. The
concentration should be in the color range of 33 ~ 50%.
2) The point at which the color of the MOLYBDATE (Middle
pad) section in the standard color table corresponding to
the middle (B) part of the test strip intersects with the
color of NITRITE in the standard color table corre-
sponding to part (C) of the test strip indicates the condi-
tion of the anticorrosive additive. The color must remain
in the normal green range of 0.3 ~ 0.8.
Figure Part no. / name
60.99901-0038
Coolant test strip
It is difficult to measure the precise concentration of
coolant drained from the auxiliary tank. Make sure to collect
coolant for the test by removing the coolant drain plug.
Do not wait longer than 75 seconds. The color of the test
strip may change drastically after a long period of time.
• If the color of the test strip does not match any color
in the standard color table, look for an intermediate
color in the standard color table. For instance, if the
color of part (C) of the test strip falls between D and
F in the NITRITE section of the standard color table,
select section E.
• It is necessary to drain and add new coolant every
year in order to prevent internal corrosion of the
engine cooling system.
TESTTEST
SERVICESERVICE
PRE CHARGEPRE CHARGE
To Next Page
Loading...
