I never trust trip computers to tell me mileage - i always figure it the old fashioned way - reset the trip odometer with ever tank and really figure miles driven per gallon pumped.
I haven't really done it yet with my X3 - have had it a month tomorrow and other than 1 road trip the first week its been almost all city driving - and as Dukat said the first 2 weeks alot of time in the car idling while i learned the features, particular idrive and nav.
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2018 X3 M40i G01 | Phytonic Blue | Mocha | Premium+Exec | Driver Assist | Adaptive M Suspension
2011 X3 XDrive35i F25 l Deep Sea Blue l Mojave Leather l Sport, DHP, Premium, Nav/Technology, Cold Weather, Convenience [traded in]
2008 328XI E91 Sportwagon l Sparkling Graphite [traded in]
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