Re: What does the 'W' mean?

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Posted to Technical Discussion Forum on 2/13/2006

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Leon,

Using this SAE chart [SAE oil viscosity] Tell me what the difference between SAE 20W and SAE 20 is. And, then tell me the difference between SAE 30W and SAE 30. You can't because SAE 30W doesn... Login to read more.

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