Do not know what Tractor Vet ran in his truck but I drove a truck some in that day and we did not use 105 octane for sure and fleets that ran hundreds of gasoline trucks did not either . As has been pointed out before in this thread Reasearch method octane ratings were poated on pumps 30/40 years ago and that method gave higher octane rating than todays posted numbers which are are average of mechanical/reasearch method and that gives lower number. Bought new Toyota Tundra in 2000 and manual called for 91 octane reseach method or 87 octane research/mechanical method. The fact that that octane is average of research/mechanical method is posted in small letters on most gasoline pumps.
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Today's Featured Article - Maintaining Rubber Tires - by Staff. The broad use of rubber tires on farm tractors and machinery has resulted in a great saving in both time and operating costs since the time of steel wheels. There are, however, certain basic fundamentals in the care of tires that should be followed carefully if the owner is to derive maximum benefit from his or her investment. First and most important is to maintain proper pressure for the work at hand. Your best guide to proper inflation is the operator's manual or instruction book tha
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