where are you pricing that fuel ?

Wally World will sell you a gallon of Coleman fuel for a bit over $8 last time I looked, which was maybe two weeks ago

I doubt that there is any substantial difference between regualr Coleman fuel, and the higher priced stuff.  We used to just go to a gas station years ago to buy "white gas" in bulk for the lanterns - that always worked just fine.

Keeping the regular Coleman fuel in the gallon metal cans seems to be OK for a couple of years or more.