All Fuel

I agree with the others but have one more thing to add:
The all fuels had shutters over the radiator that were operated by a lever on the steering column that looked like another throttle lever. When you started the tractor on gas, the shutters were closed. When the water temperature reached 190 degrees, you could switch to the distillate, or tractor fuel. As long as you could keep the operating temperture at or above 190, you could burn the alternative fuel.
I imagine the novelty of this wore off pretty quick, especially if you stalled the tractor while running on distillate.
Anyway, just wanted to give you a little more info.

Gary

That's not ignorance, it's just youth. Bill's answer is correct, for sure. Other names we called the "low-cost" fuel were "Distillate", "Power Fuel", "That danged stuff that won't give much power" and others that I can't put on a family type board.

The bottom line was that gasoline (for starting) was probably around 20 cents per gallon and the Power Fuel/Distillate/Whatever was about 9 cents a gallon.

Stan