Product Tested

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MidWest Petroleum Products

Company and Product Information

Corporate Office:
MidWest Petroleum Products
5841 W. 66th Street
Bedford Park, IL 60638

Website(s): www.midwestguard.com


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.

MidWest Guard
Global 50/50 Antifreeze/Coolant

MidWest Guard
Global 50/50 Antifreeze/Coolant

Distributed By: MidWest Petroleum Products, Bedford, IL

Purchased at: Chicago Heights, IL

Date of purchase: 11/15/2016


Website(s): www.midwestguard.com

Test Results and Assessment:

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

Note: The product tested does not contain Bitterant. As such, it cannot be sold in the seventeen states (including Illinois, the state where it was purchased) that require a minimum Bitterant level of 30 ppm.

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.

Physical Properties and Chemical Analysis  MidWest Guard
Percent Antifreeze, (Based on Percent Glycol) 49
Freeze Point, (ASTM D3321) in ⁰F -32
Bitterant, (ASTM D7704) in ppm Not Detected
pH, (ASTM D1287) 10.16
Color, (Visual) Yellow
Ion Chromatography (ASTM D5827)  
Glycolate, ppm Not Detected
Formate, ppm Not Detected
Chloride, ppm 9
Sulfate, ppm 16
Nitrite, ppm 870
Nitrate, ppm 177
Phosphate, ppm Not Detected