I have recently changed my vehicle for one of an identical model and(except for going from a 7-seater to a 5-seater), the specifications for the vehicle, a VW Touran, are identical. The first vehicle had around 34,000 miles on the clock, whereas the current one has not yet reached 2,000 miles.
The new car is giving a reading that indicates an approximate increase in mpg of about 6 to 8 mpg. Could this be because the engine of the new car (1.9 TDI) has not yet fully loosened up, a variation in instrument characteristics, or a combination of both?
The downward climb of the fuel gauge behaves differently (at first I thought it was sticking at the half empty mark), and I wondered if the fuel consumed in the MFD is measured by the ECU, or simply from the fuel gauge. If it is the latter, could any changes in the MFD readings be at variance to the true mpg usage?
Has anyone else met with similar findings?
Regards, Snowball.