The issue is WORKING, i.e. plowing, with one of the later high-compression 6-cylinder IH engines. In this case a 706 gas had a piston meltdown because the "93 octane" gas was actually 87 octane gasoline with 10% ethanol added to bring it up to 93 octane.
Seems not only does the gas have to be 93 octane, but it also has to be PURE gasoline, or else these high-compression gas engines will melt down when worked.
The old low-compression 4-cylinder engines like H's and M's and 300s and 450s will run on pretty much any sort of gasoline, even E85. Totally different animal.
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Today's Featured Article - Choosin, Mounting and Using a Bush Hog Type Mower - by Francis Robinson. Looking around at my new neighbors, most of whom are city raised and have recently acquired their first mini-farms of five to fifteen acres and also from reading questions ask at various discussion sites on the web it is frighteningly apparent that a great many guys (and a few gals) are learning by trial and error and mostly error how to use a very dangerous piece of farm equipment. It is also very apparent that these folks are getting a lot of very poor and often very dangerous advice fro
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