Not an imperial gallon, a US, 3.78 liters american gallon.
Much of my commute is at 30-35 MPH, at which speed I run at 19 inches of vacuum. So the old beast is hardly workin'.
It drives my Dad crazy when I use american gallons, not british!
My old Pontiac only got about 10MPG. But the fuell line was leaking. Boy, fixing that sure helped!
