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Old 08-08-2015, 02:51 PM   #6 (permalink)
phh
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Join Date: Jan 2010
Location: Portland Or
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Wifie's car - '89 Eagle Summit DL
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if you do use these cleaners, do it a tankful before the oil change. Then afterwards flush the crankcase, change the oil, and clean the spark-plugs. Because carbon and other crap that gets cleaned will be deposited into the engine.
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Peter in Portland OR
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