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      04-03-2009, 09:35 PM   #17
DANMACINSD
First Lieutenant
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Drives: 2013 BMW 535i
Join Date: Nov 2007
Location: SAN DIEGO

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Some gauge manufacturers sell an OBD II gauge. It might be good, then you can cycle through a bunch of readings and pick the one you find useful.
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13 535i Msport