There also seems something strange going on with the guage data points, I think the posted gauge data point simulator might be a little misleading. Not a big deal if we can count on the light or gong but might be somethng to look into that later.

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1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)