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Old 11-25-2012, 10:16 AM
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Fudman Fudman is offline
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Location: Sudbury, MA
Join Date: Apr 2007
Posts: 6,823
Mein Auto: '02 530i Sport auto
Your loss of pressure suggests a small leak somewhere in the system. I would not put any aftermarket crap inside the engine. It's not worth the risk of causing unanticipated side effects. Better to just check the coolant level weekly and top off. Keep a gallon of coolant in the trumk and your are good to go.
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