What's a refractometer?Hi guys,
One of my main concerns is Dex-Cool, the notorious GM coolant... I already bought a refractometer and plan on monitoring it closely...more on that to come later...
A refractometer is a device that measures the index of refraction of a liquid. Based on the index of refraction, you can determine the composition of your coolant and its exact freezing and boiling point. I also have a digital multimeter that is another safety test (positive in coolant, negative on body, and voltage should be less than 0.5V, otherwise coolant is bad).What's a refractometer?
Change your coolant at least every 5 years and never mix any other coolants except Dex-Cool then you should be fine. Dex-Cool is not compatible with anything else.
Thanks man..it's an 09... check it out here:Welcome and what year 535i...?
I work for a BMW dealership.