Thousands of gas tractors have run millions of hours without issue on 87 octane. The owner’s manual was written before R&M were standard pump ratings. Just as your manual says to use 30 weight in summer and 20 weight in the winter - it was before 10W30 or 15W40 was available - and on older tractors it says to use 30 weight nondetergent - because 30 weight detergentated oil was not available at a price that farmers could afford.
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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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