Forum: X5 (E53) Forum
01-22-2018, 11:10 AM
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Replies: 187
Views: 51,717
I compare the reported mpg by the OBC to actual...
I compare the reported mpg by the OBC to actual at every fill up. then I reset one of the mpg readings. I leave the other one go for long time average. My manual calculation is consistently .4 mpg...
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Forum: X5 (E53) Forum
01-21-2018, 03:05 PM
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Replies: 187
Views: 51,717
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