Full or empty water tank
What's the effect of driving with a full versus empty water tank on your mileage? I realize vehicle size, engine, etc all have an effect on this, but on your RV does a full water supply really make a ...
Forum Discussion
It will make a small difference in fuel mileage.
But, it's not enough to make me travel with an empty water tank.
Try it both ways and see for yourself.
But, it's not enough to make me travel with an empty water tank.
Try it both ways and see for yourself.
