Bonneville V6-3.8L VIN K (1996)
measured is unknown, such as a customer vehicle that has accumulated mileage, use of a refractometer is recommended.
Coolant testers J 26568 (Centigrade Scale), J 23688 (Fahrenheit Scale) or J 38633 (Expanded Fahrenheit Scale) can be used to check the antifreeze
protection of the coolant. Make sure the refractometer markings are correct. Unless 3 26568, J 23688 or J 38633 has a provision for temperature
correction, test the temperature at which J 26568, J 23688 or J 38633 is calibrated. If the coolant is warmer or cooler, the reading may be incorrect.
Follow the manufacturers directions on using J 26568, J 23688 or J 38633.
