The high octane level in premium is not needed. The Ethanol,,, how ever can and does cause problems. Ethanol carries moisture and the moisture is what causes most of the problem with the carbs. There can be corrosion and deposits in the float bowl due to moisture. There can be a gum deposit from the ethanol dissolving years of film off of the tank and that gum then hardens in the bowl and jet passages. The fuel can and does.... dry up and scab over jets and passages from the scum and gum in the fuel from the ethanol removing it from other places. And carb venturi design using particularly small passages will totally clog up from using ethanol fuels, again from the gum and scum scabbing over and stopping up the passages. Running the carbs dry with a cut off valve will MOSTLY stop this from happening on a lot of small engines. Engines with either solenoid loaded needle cutoffs or large jet design seem to tolerate the ethanol very well, so modern designs seem to do better. SO... you do not need high octane. You may or may not have problems with the gas drying up and causing flooding or a very lean run or a no run due to ethanol gas. Non ethanol fuel, if you can get it and afford it, will have less problems. Running the tractor often, will mean less problems as oppose to letting it sit for long periods and having more moisture and evap problems. Again, cutting off fuel and running carb dry before you put the tractor/chainsaw/welder/generator/weedeater/........ up, seems to solve/help this problem.
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Today's Featured Article - Women and Tractors - Tractor Engine Repair - by Teri Burkholder. One of the great things about working on a tractor engine with your other half is that you know what he is thinking of at all times and can anticipate his every move and his next thought of what he will do. With Ben, anyway, I can tell! He'll be busy working and I’m handing him tools and he says, "give me that..." and I’ve already got it in his hand or "hand me that....."and I’ve got the portable light right where he needed it placed to see. "Run in the house and get me a...."as I open th
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