Quote:
Originally Posted by A6bullet
Another update: This is kind of fun..
4 1/2 hour trip. couple of rest stops. I used Cruise control most of the time and kept the speeds in between 110 and 130. Light traffic and good weather.
Achieved: 39mpg (6L/100km)*
*On the road I had over 40 mpg (5.8L/100km) but I drove a bit in the city with lots of lights so it went down. I had 875km displayed range when i filled up.
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Are you actually verifying the on-board computer values by brimming the tank and calculating the ACTUAL fuel consumption from full to full, and then measuring how many litres it took to fill back up again?
I do that with all my vehicles, and the BMW 318i is by far the worst. It's consistently over-optimistic with the fuel economy. Most of the time the OBC says I achieved 40mpg, when in reality it was more like 35mpg. EVERY time.