Yeah, I have a big diesel tank for tractors and other ranch equipment (”dyed diesel”), and we do have some pretty big diesel generators on trailers. The West Texas heat does a pretty good number on it, even with a flipper to keep it from separating.
But I wanted something to just sit by the house and work when I wanted it to work. We had bullet tanks already because NG to the house is a rather recent improvement, and that’s how we used to heat the house (and still could, in the event NG shut down).
Well I have a 500 gal tank fuel tank myself and also have a 1000 gal Propane tank for the Greenhouses and a backup source for heat for the house as electric is how I heat..but we don’t get much cold weather in SW Arkansas.