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Old 08-02-2010, 08:34 PM   #11
hinton08
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Join Date: Apr 2009
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Re: 2001 GMC Yukon Poor Mileage

antisieze is actually a good idea. it keeps the O2 sensor from getting stuck and siezed up in the exhaust pipe and makes it much easier to remove if needed. You just have to know how much to put on so you dont have problems like this.
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