Sharp Decrease of Fuel Mileage
I found out the hard way that if your torque converter lockup clutch solenoid quits working there is a 4 MPG drop in highway fuel mileage, so that is an additional thing to consider.
i lost 50 miles per tank when every gas station here started using E10. the 10% ethanol blend for gas. depending on what blend the stations are using they burn more inefficient.



