Thread: Oil suggestions?
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Old 07-10-2007, 06:06 PM
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Cobra Make, Engine: Kirkham 427 (KMP 266); CAV GT40
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it has higher Zinc content ( not now with the new rules) since it does not have to conform to the exacting standards of pollution control as motorcar oil does. Zinc destroys catalytic converters, but is great for solid lifter cams and break in.
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