Does your 09 Z4 even have an oil cooler? I heard some did not. When I went to Dinan for my S2, they were surprise to find an oil cooler on mine. I heard some 09 did not have oil coolers that had DCT, only 6speed manuals. Not sure if that is true or not? I pushed mine pretty hard and the highest temp on mine was 250. I'm sure the high weather temp did not help.
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2015 BMW i3 REX
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