Replace Cat Converters?
07-05-2011, 04:14 PM
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Staging Lane
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Join Date: May 2006
Location: Upstate NY
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Replace Cat Converters? Had my 97 LT1 rebuilt a couple summers ago. After the rebuild, it was burning a LOT of oil ... 1qt per 600 miles. Tore the engine down the next winter and found a bad valve seal. But not wanting to be without my car that summer, I drove it all summer long burning that much oil. I figure I went through about 25 Quarts. Here's my question... All of that was burning and running through the converters. I don't have any O2 sensor errors, but I'm curious if I should consider replacing the Cats, if I could be losing performance or efficiency. Any thoughts? Thanks.
