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Old 11-09-2002, 05:18 PM
Jack21 Jack21 is offline
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Cobra Make, Engine: Classic Roadsters, Tweaked 351W, T-5Z, CRII Tech Support Team.
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If you're using a 5W30, you might want to switch to a 10W30. Perhaps a switch to another synthetic. I use Castrol 10W30 in Cobra (11,000 mi), and wife's Buick (93,000 mi) no leaks.

50W racing for a street engine? Don't think you want to do that.
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