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04-07-2020, 04:24 PM | #1 |
Senior Member
Join Date: May 2010
Location: Bozeman, Montana
Posts: 997
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Oil viscosity test
Here's a question for you old timers or someone who learned from an old timer. Is there a "homegrown" method to determine an oil's viscosity?
Basically, how can you tell whether a car has winter or summer oil? I remember the Prell shampoo commercial when I was a kid. They would put a pearl into a bottle of Prell and it would slowly sink to the bottom. Now is there a way to test motor oil. |
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