Years ago we found by adding some "104+ Octane Boost" bought at Wal-Mart helped prevent fouling of the spark plugs. We discovered this around 1990 with some other low compression air cooled engines. The sparkplugs didn't get plugged up with deposits they just got a black coating on them that would short them out by letting the electric spark flow thru the carbon film instead of jumping the gap to create the spark. Cleaning the plugs helped but we found the octane boost cured the problem. I add the octane boost to tractors that will sit for long periods of time without being run. Other than that I don't use it in the everyday tractors unless they need it.
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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