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      11-23-2009, 11:28 PM   #3
dave g
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Drives: 2000 540i/6
Join Date: Nov 2009
Location: Canada

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I found myself with the same dilemma. This might sound crazy, but it worked for me... sex lube! Yup, that's right, I figured if it was gentle enough for my junk, it won't hurt the rubber O-rings on my water pump. Worked like a charm.