Oil never contaminated by blow-by so it always looked clean and plugs never showed wear ever. It is a great motor fuel. Mileage was about 80% what one expects on petro, but at the time was cheaper than gas by a bunch.
I'd do it again someday with an older small 4 cyl carb intake pick up and hide tow-motor jugs in the bed toolbox that are filled from the bulk tank in the back yard, as many already do here. Dri-Gas!
That 401 v6, was that the one that had the plugs at the top side of the heads, as opposed to under the heads? I’ve only seen one of those and it was quite amazing. Huge engine but still a 6 cylinder.The guys around here who were racing 6 cylinder cars were all after this guy to sell them that engine. I believe it was about a ‘64 GMC that it was in.