The way an engine runs is mostly a function of the heat value present in the fuel. BTU (Bristish Thermal Units is the measure). It is more commonly called the heat of combustion. Heck these old tractors have run on some real garbage over the years. The original Farmals ran on a middle distillate and that octane varied by as much as 10 numbers. The first octane numbers were run only on a RO engine , the MO engine didn't even exist back then. Ethanol has a low heat of cmbustion and doesn't run as well as regular gasolines will. It has a higher octane value, but that octane doesn't help performance.
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Today's Featured Article - History of the Nuffield Tractor: Conclusion - by Anthony West. In the last piece I mentioned that Nuffield had reached the stage where they had chosen to drop the "Universal" from production. The two new models were given three figure numbers, instead of "three" and "four". Model numbers were introduced to help farmers and dealers instantly recognize the engine size and horsepower of the tractor, the 4/60 had a four cylinder diesel engine which developed 60 bhp at 2,000 rpm. The 3/42 had a 3 cylinder diesel engine which produced 42 bhp at 2,000 rpm. Th
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1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
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