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Originally Posted by B4BMW
How do you guys calculate the exact mileage (lets say 12.66 MPG) per gallon?
Is this something other than what the mileage indicator says?
Thanks
Veera
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The best way is to use the trip calculator on your idrive. It's one of the navigation options. No need to use calculator.
To get an accurate reading on hwy miles, you need to start it while driving on the freeway not before getting on since an uphill climb will mess up the numbers. You can do the same thing for street driving.
It's pretty accurate and I use it a lot if I want to monitor my gas consumption and driving habits.