Should you travel with a full tank of Gas?

If you are really looking for an analytical answer, the answer is IT DEPENDS.

On flat ground, weight is a reasonably insignificant factor, once cruising speed has been reached. MPG is much more a factor of aerodynamic drag.

BUT, on grades, weight becomes a significant issue in MPG as well as speed/HP demand for a given speed.

Would I consider running with less weight in fuel-- NO. But I do look at gas buddy and if less expensive fuel is on my route, we WILL stop there.

BTW, both gasoline and diesels use fuel to cool fuel system components, so particularly in hot summer conditions, do NOT run low on fuel unless you enjoy spending extra $$ on repair.

Hi Lenny,

If your gas tank is full or not when you travel is not going to affect your MPG. I checked your Profile and see you have a 38' gasser so you are probably well over 20,000 pounds of weight. A few hundred pounds of gas one way or the other is not going to make a difference. Besides, if you start your trip full, how long does it take to get to 1/2 tank. Not long - right? Fill 'er up and enjoy the ride!

Certainly. If you let it get below 1/2 full you may not be able to start the generator.

TravelingLight2 wrote:
Yes,

Some intank fuel pumps depend on the gasoline in the tank to cool the pump. If you travel with tank below half full the pump runs too hot and will eventually fail.

Yes,

Some intank fuel pumps depend on the gasoline in the tank to cool the pump. If you travel with tank below half full the pump runs too hot and will eventually fail.

yes. why not?