Yea it would be 19 MPG if I had a 11 Gallon tank. But we have what i now know to be a 22.5 gallon fuel capacity.
275 miles to the tank last week. 22.5 fuel capacity.
275/22.5=12.22
here is a list of thing I am going to fix or replace.
*Fuel Filter
*o2 Sensor
*infalte tires to 39 PSI
*Clean EGR Valve and Tube
*Replace Intake Gasket
*Check Brake Calipers for possible drag