Testing Coolant

Testing Coolant












Tool Required: J 26568, J 23688 or J 38633 Coolant Tester

^ Do not remove the clear plastic pump from J 26568, J 23688 or J 38633.

1. Release the tip of the pump from J 26568, J 23688 or J 38633.
2. Insert the tip of the pump into the radiator filler neck.
^ Make sure the tip of the pump is below the level of the coolant.
3. Press and release the bulb to get a sample.
4. Insert the tip of the pump into the cover plate opening.
5. Press the bulb and allow a few drops to fall onto the measuring surface.
^ Do not open the plastic cover when taking a reading because water evaporation can change the readings
6. Point J 26568, J 23688 or J 38633 toward any light and look into the eyepiece.
^ Coolant protection reading is at the point where the dividing line between light and dark crosses the scale (antifreeze protection is the scale on the right).
^ Temperature scale is reversed from a standard thermometer scale.
^ Below zero readings are on the upper half of the scale.
^ If the readings are not clear, the measuring surface was not cleaned and dried properly. Wipe dry and take a new test.