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Old 08-31-2006, 11:19 PM
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sltbluh3 sltbluh3 is offline
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Join Date: Oct 2005
Location: Charlotte, NC
Posts: 34
sltbluh3 is off the scale
Default Re: Using oil between changes

I swicthed to Castrol synthetic @10,500 sitting at 18,500 now, dipstick still shows full and the last email from onstar showed 63% oil life left. Something is not right with the engine!!!!
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