MPG Mystery
SOS: Help me solve the drop in MPG before I go crazy!
My 2013 Fit Sport has been getting 17 mpg for over a year now. I only get about 160 miles per tank before I have to fuel up again. Both verified with real math and not relying on the trip computer. I do mostly city driving and only drive about 4 miles per day with max speed of 35.
I have thrown so much money into it and have yet to fix the issue. I’ve taken it to multiple mechanics including Honda (twice alone), but no one has been able to diagnose and fix.
Things I’ve done or had done: filling up at different gas stations, all new spark plugs, valve adjustment, brake check, maintained tire pressure, regular oil changes, transmission flush, new battery, fuel injector cleaners…
No blown fuses, no dash lights (they all work), no dragging brakes, not holding water, and no codes. It drives great otherwise.
Any ideas?! I’m desperate. TIA