Most of my small engines are OLD. Some of them have nearly 200 pounds of compression---Stihl 200t has 185# Not exactly considered low compression.
You are correct in that I probably don't need 91 or 93 but where I buy gas, 87 and 89 have ethanol and I certainly don't need that!
From experience, I have decided that todays gasoline is not formulated for yesterdays engines! Older automobiles with higher compression, run much better with 91 or 93 although most people will use 86 or 89 and live with it.
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Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
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