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Old 01-12-2017, 01:45 PM   #9 (permalink)
Daox
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Found a bit more info. Here is a oil temp vs viscosity chart. If the lines are THAT close together at normal operating temperature (~90C), then at colder temps they are quite a bit more drastic.

Image from: Oil Viscosity Explained




Image from: https://www.quora.com/What-is-the-di...0-5w-30-10w-30

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