Don, looks like this gas issue has been beat around pretty good, but I never did see a direct answer to your direct question. So I'm gonna take a stab at it. First a disclaimer: Although I have a couple of the six cylinder IH gas tractors, I haven't had them long enough to tell anything definitively. That being said(and I too have read the operators manuals describing the need for 93 octane Research Method) I agree with your calculations that the 89 octane at the pump would equate to 93 octane Research Method. Don't know if anyone else out there agrees, but that is my take on it. Guess I'll eventually find out; I plan on running them. Maybe somebody else will give their thought on the issue.
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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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