Coleman lantern Fuel in G John Deere

Coleman fuel was gasoline before 1915 or so. Then they discovered that higher compression ratios required a mix of gasoline with more heavy carbon gasoline molecules, like octane, nonane, decane instead of the septane and sextane you find most of in lantern fuel or white gas.

What's important about that chemistry is that you're actually lowering your octane when you mix it with pump gas or run it uncut. Makes sense that a 6:1 engine will respond well to lower octane ratings, the bonus is that it smells good. The thing to watch out for is pinging as it will burn faster than pump gas. Then you'll either have to retard your timing or switch back to pump gas.

Steve

I can remember my grandpa telling me about White Gas and using it in a Gas lantern.