Way back in 1955, when I took driver's training, our textbook said to fill up early in the morning to get cool fuel, which would expand as it warmed up in your tank. The object, of course, being to maximize your mileage.
Anybody have a feal for how much diesel expands as it warms up?
Here in Brownsville, I can't realize any benefit from pumping early in the morning, because the fuel always comes out warm from the underground tanks. It starts out cool to the touch in the handle, then the handle warms up noticeably after the first couple of quarts! Does this mean that I can expect a drop in mileage due to contraction in my tank on these cool 40 degree nights?
Just wondering. It crossed my mind the other day, when the fuel nozzle got quite warm in my hand.
DW