Re: Will lack of zinc in oil destroy older engines?

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Posted to Technical Theory Forum on 9/15/2007

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Forget everything you thought you knew about viscosity.

The Mobil 1 0W-40 Is really about the same viscosity as the Saab 30 weight.

SAE 30 range is from 9.3-12.5 cSt viscosity at 100C/212F and an... Login to read more.