DeVille V8-4.6L VIN Y (1998)
6. Point the coolant concentration tester toward any light source. Look into the eyepiece.
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The 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.
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The temperature scale is reversed from a standard thermometer scale. Below zero readings are on the upper half of the scale.
7. If the readings are not clear, properly clean and dry the measuring surface. Conduct a new test.
