Since Castrol (GTX) comes in a popular 10W40 grade which I planned to use in my next change, I would like to clarify my understanding of one of Randy's comments on this subject. Am I correct in understanding that the current 10W40 formulation (of Castrol and others) should be perfectly fine, and that in spite of earlier problems with 10W40 the V-1 modifier is no longer an issue.
Thanks for your expert input on this topic.

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Barrie
'86 300E