I see a lot of discussion about the lack of zinc in the new oils and how it might (or might not) be a problem for old car engines like my flathead Mercury. I'm using DMO 15w-40 in it and not worrying about buying zinc additives. Its almost the same controversy that arose when they took the lead out of gas. Some claimed it was going to ruin the valves and seats on the engines of older vehicles and machines if they did not have lead in the gas. That must be 30 years ago. All my old engines seem to run fine and no valve problems using modern gas.
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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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