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Re: 0W-20 oil
Posted to Castrol Forum on 4/21/2018 2 Replies

First, it is two SEPARATE ratings: SAE 0W and SAE 20

SAE 20 is NOT the same as SAE 20W!

SAE ratings are focused on kinematic viscosity at 212F/100C

SAE W ratings are focused on cranking and pumping performance at well below zer0 temperatures [SAE J300 20... Login to read more.

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