93 or 91 or whatever is NOT "better" gasoline. It is the same stuff with additives to boost the octane or just refined to a different level. Nothing fancy or better. Just gasoline.
Of all of the stories of "never had a problem," I have seen enough problems with ethanol to know that there is a potential for problems. While most times, there are no problems, there are also times when there ARE problems. One fellow brought me 3 mowers that he could not get running. He had put E10 in each one. They were all gunked up with some gray sticky material that was nearly impossible to remove. The only thing different about them was the first use of E10. Coincidence?
Octane is a measure of a fuel's characteristics in regard to Reid vapor pressure and rate of combustion. Most engines will run best on the fuel that they were designed to burn. But, of course, every shade tree mechanic knows better than the folks that built the engine. Right?
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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