10w-30 for temps below 32? in diesel ford van.

Weave

Veteran Expediter
Charter Member
RE: 10w-30

That is some very informative stuff; I printed it out for the files. They say the W signifies the low temperature pour character of the oil. I think that's where the winter reference comes from. Now whether or not it actually means winter the world will never know :)
-Weave-
 
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