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cnavarro cnavarro is offline
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Join Date: Oct 2001
Location: Momence, IL 60954
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I'll point out that Castrol Classic might not have tons of Zn, but look at the Ca and TBN of 5.0. The low detergency allows the remaining Zn and P to do a better job.

Scott, based the uoa, that oil would not be my first choice, but then again Blackstone has gotten things wrong in the past. Nothing is 100% definative unless it's retested and then cross tested at another lab.
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Old 12-28-2007, 06:36 AM
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