15.5 average is exactly what it is - average. Meaning some will get 20s and some will get 10s.I think you are looking at it wrong. If you read back a few posts someone was claiming the Fuelly average for diesels was around 15.5. This is clearly wrong as several of us have hand calculated mileage to be 20 plus.
Not sure why you started posting fuel prices to defend the hemi. Maybe you should stick to crayons and coloring books Marine..... (military
joke... If you have served, you get it ).
Someone claiming a guy can't get 20 and bringing up fuelly average, has no idea how it works.