Counting propane as tongue weight.

Of course I count whatever wt. is on the tongue whether it's propane, etc. and really don't understand your question since you sure can't just add this or that to get your tongue wt. since how you load your trailer will be a major factor in what your tongue actually weighs. As you said maybe you only have 30lbs vs. 60lb in propane .... what are you adding that to????? ... that "to" is going to have many times the variance of that 30lb variance in just propane wt. Therefore you have to weigh the tongue anyway and then all you have to do is to know approx. how much propane you have for that wt. and then add or subtract that as needed, but I don't see why you would need to be that accurate. In the overall scheme of things that 30lbs variance in the amt of propane will not be a major player in tongue wt. one way or another once you have a "real tongue wt" from actually weighing your tongue. I consider tongue wt. to be approx + or - around 100lbs of whatever number I get from my Sherline scale when I have my trailer fully loaded for camping.

Larry