If the color and consistency of the antifreeze is not enough proof to show that your antifreeze is in need of being replaced, a coolant hydrometer might be able to read it accurately. The coolant hydrometer test can be used to see if your coolant is still effective in your engine cooling system. By pumping a little antifreeze into the hydrometer and shaking out the air bubbles, we can see, based on its temperature, whether or not the antifreeze inside your engine cooling system is potent enough to keep your engine cool while running, and effective enough to stop it from freezing in the wintertime, regardless of the coolant’s color. Another neat way we can test your coolant is by using the voltmeter test.
Napa Service Assistant
You don’t have to be an expert to know that preventive maintenance is the best way to make sure your vehicle is running properly. Use our interactive vehicle tool to learn about the maintenance and services your NAPA AutoCare Center can provide.