I recently changed out the stock air filter and dropped in a AEM dry charge filter. With the stock filter around town I was getting 17.5 to 18 MPG. This was on the EVIC and real world calculations. Haven't put many miles on it since the filter change but the EVIC now is showing 15.5 MPG. I won't really know until I do the actual calculation but if this is real, this is almost a 2 MPG drop! Has anyone else experienced this. If this is actual, I am going back to the stock air filter.