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COS Blog

Information about Central Oil Supply and all of its divisions.

How To: Read a Viscosity Correlation Chart

Jennie McRae - Monday, November 02, 2015

Whether you're in the DIFM business or you're a DIY kind of guy, you probably are familiar with (and absolutely can't live without) a Viscosity Correlation Chart. 

Still, it can be shocking to know that a lot of people in the industry don't utilize this valuable tool. 

Put simply, this chart is read horizontally. So, if you're trying to figure out what weight an AW 32 is, just find your blue ISO column and follow that all the way to the gray SAE Engine column. An AW 32 is closest to a 15 weight motor oil.

Pretty simple, huh? 

As someone who used to work in customer service at an oil distributorship, you can imagine how happy I was when this chart was first introduced to me! It made life a lot easier, and today we want to share that with you. So take this chart and use it to your heart's content!

If you have any further questions about how to read this chart, please contact our Regional Sales Support Specialists at 318-388-2602.

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