Well, my main concern is travelling long distances.

My diesel rig is a tow truck for towing my track car, spare parts, and camping equipment to various race tracks.

And when I convert the little truck (Mazda) to diesel, I will be using a 15-20 gallon tank for WVO and a smaller tank for diesel. (I don't want to sacrifice bed space. They will be going under the bed.) I don't want to be limited to the small tank only if petroleum diesel is the only fuel available.

If hot diesel is not a problem, then I'm happy.