Feb 26, 2012 #1 W Wilfie Active Member Joined Sep 28, 2011 Messages 79 Car CLK320 W208 Why does my average mpg (since reset) creep up when my average mpg (since start) is much lower, surely it should reduce? It's baffling me
Why does my average mpg (since reset) creep up when my average mpg (since start) is much lower, surely it should reduce? It's baffling me