Straight Weights = Multi-Viscosity Weights?

[LargeCarMan]

I think I am beginning to understand why a straight weight...lets say 30 weight could meet a multi-viscosity weight too. For example let's use a straight 30 weight.... if tested, could also meet 10-30 weight....is this correct?

Help me in further understanding this concept

 

[darkdan]

Yes it could.....if it's a synthetic.

 

[TallPaul]

Redline 10w30 has no VII added to it.

I suspect some conventional SAE 30s might meet a 20w test.

 

[bruce381]

"I suspect some conventional SAE 30s might meet a 20w test."

I'm sure you are right but I do not get to excited about a 20w/30

bruce

 

[Mr Nice]

Does an SAE 30 have a higher HTHS than a 5w30 or 10w30 ?

 

[Master ACiD]

quote:

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Does an SAE 30 have a higher HTHS than a 5w30 or 10w30 ?

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it could, typically and very generically speaking, it should.
but it doesnt have to have a higher hths. i suspest come 10w30's have higher hths than some straight 30's.

 

[TallPaul]

quote:

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I'm sure you are right but I do not get to excited about a 20w/30.

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There are only a few of us that do.