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Discussion Starter · #1 · (Edited)
The check coolant notice popped up in my information center today and so I was able to use my Robinair 75240 Coolant and Battery Refractometer for the first time. The coolant tested to -35°F and while that was good, it made me wonder about the additive (silicates and nitrites) side of the coolant.

So my question is--as long as the coolant is still fairly strong (e.g. it still protects below freezing) does that mean the additive side is still good OR must I perform a separate chemical test to check that part? Such as the Rotunda Anti-Freeze test strip kit (part number 328-00008)?

Thanks in advance for the thoughts and apologies if this has been asked before (I searched on the site and all I found was several posts asking how to turn the message off).
 

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Don't know anything about your test. I get my test kits (strips) from Acustrip in NJ. They test for contamination, alkalinity, and nitrites. My box is labeled part # acuelc4048.
 
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