Product Tested

front label

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back label

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PolyGuard Products Division

Company and Product Information

Corporate Office:
PolyGuard Products Division
4635 Willow Road
Medina, MN 55340

Website(s): No Website Found


Petroleum Quality Institute of America

Antifreeze/Coolant Test Program

The Petroleum Quality Institute of America (PQIA) is an independent resource for information and insights on the quality of lubricants in the marketplace. Our mission is to serve the consumer of lubricants by randomly sampling and independently testing lubricants taken from the field. Test results are posted along with the brand names on the PQIA website. This webpage provides an analysis on the brand detailed below.

The following are the test results for the sample examined.

50/50 Antifreeze/Coolant

Pre-Diluted Ready To Use
50/50 Antifreeze Coolant

Marketed by: PolyGuard Products Division, Medina, MN

Purchased at: Paw Paw, MI

Date of purchase: 11/15/2016


Website(s): No Website Found

Test Results and Assessment:

The results of the tests conducted on this sample are consistent with the labeled claims.


bottle icon Physical Properties pass
Chemical Analysis pass
Labeling warning

Note: Although laboratory tests alone cannot be used to establish if coolant meets standards, they can be used to determine if it doesn't.