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Old 03-27-2001, 09:41 PM
Kebowers Kebowers is offline
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Join Date: Jul 2000
Posts: 638
Oil and Cat mufflers

An engine burning a quart of oil/1000 miles will destroy a cat muffler in 10,000 miles. it's mostly the phosphorus (Zinc-dialkyl-dithiophosphate anti wear additive) OEMs are after oil companies to reduce ZDP levels to protect cats longer (even if engine wears more).
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