Thread: Royal Purple
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Old 07-21-2008, 07:20 AM
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Barry Bissonnet Barry Bissonnet is offline
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Join Date: Jul 2008
Location: Spicewood, TX
Cobra Make, Engine: LSC 427, KC 408 stroker
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I've seen some crate engine makers say to use non-syn oil for the first 1000 miles or so then it's ok to switch to syn oil.
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