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How would the castrol work mixed say with 3 1/2 qts of M1 5W-20 and the 1 qt of Castrol 0W30. Gives you the thin weight of the M1 but the long life and addatives of the Castrol - best of both worlds??? or too Frankenstein???
Commnets?
Last edited by cmanser; 02-18-2008 at 12:33 PM.
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