There is ash and there is ash. IH oil low ash oil virtually eliminated the calcium, barium and magnesium from their so called low ash oil. Another oil may be lower in total ash but not necessarily those three components which are the ones that leave hard, insulating deposits behind on valve heads, spark plugs, pistons etc. I scraped and chiseled a lot of carbon from those valve burners for many years and low ash oil, along with good valve guide seals and better piston rings really made a difference. A valve face covered with a layer of hard ash cannot cool properly so it overheats, sticks in the guide, torch's out etc. The spark plugs on those engines would build up that hard carbon and bridge the gaps under heavy loads. Now days, very few see heavy work and the plugs get built up with soft carbons from puttering around. I do not know what low ash oils on todays shelves actually contain or do not contain.
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Today's Featured Article - Box Plow Blues - by Tom Schwarz. One of the first implements most tractor owners obtain is the box plow. For very little money, this piece of equipment promises to plow and flatten any hill or vale on your ranch road or farm. At least that's what I thought! As simple as a box plow appears, it can be rather challenging to make work correctly. In our sandy soils of Florida, traction is king. You can never have wide enough tires or heavy enough weights to get all the traction you want … unless you own a monster tractor. U
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