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Originally posted by atomarc:
I don't know! Somewhere between the two viscosities would be my guess. This would be a question for the Shell answer-man. smile
Do we even have one of those? grin

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Originally posted by Fumblin46:
I put straight 20 in my splash oil engines and 10-30 in the newer stuff.
Where the hell did you find it?

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1946 Chevrolet 3600 - "Old Number Seven"

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