mileage drop
 

2015 Mirage ES. Happy with the car. I used to get 32-45mpg when I was commuting 150 miles a day which included a 4000ft elevation change from the Sierra to the Valley.
Now I have a flat commute of 80 miles a day an recently my mileage has been 25-30m. I''m almost due for an oil change in the past that never affected my mpg. Maybe it's the new tires I got, although It seem to recall the mileage decreasing prior to replacing the tires.
I've done all the maintenance and it has 127k on it. Ive just never seen such a noticeable drop in the years I've had it.