I bought a couple PH test strips to test the acidity of the coolant in my other car. Then decided to test the coolant in my GSW, factory fill with about 5 years and 32K:
Fresh coolant from the bottle (left), coolant from expansion tank (center and right)
The test strips says my coolant is starting to become acidic, but I'm not sure how reliable they are. The expansion tank is clear and pink, no sediment. Should I change my coolant?
Fresh coolant from the bottle (left), coolant from expansion tank (center and right)
The test strips says my coolant is starting to become acidic, but I'm not sure how reliable they are. The expansion tank is clear and pink, no sediment. Should I change my coolant?