Join Date: Apr 2008
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The Passat has two trip computers. One will automatically reset after 2 hours or so of the ignition being off, the other has to be manually reset.
I always fill it up to the brim, and rarely fill it up unless it is in the red, so I always reset the trip computer when I fill up. This way I an get an indication of MPG over a full tank, and also an indication of MPG for each trip.
As has been said before, if you have a good mix of driving conditions, your average MPG should settle down to a good average after a few hundred miles, so you won't see much of a change from there on.
My individual trips can be anywhere from 35 to 45 MPG, but my average MPG for a full tank (about 600 miles) is always around 40 MPG.
Currently in martin999's garage:
2011 (11) VW Passat 2.0 TDi SE + options in Island Grey, 2011 (11) Honda CB1000R in Pearl Cool White... oh and a 2004 (54) Secnic II 1.5dCi Dynamique in Ottoman Blue !