Sulfur is is not a good lubricant. In fact, it's too caustic for most engine metals. Zinc, in the form of ZDDP is best for resisting cam spalling. Some of the 'high mileage' or 'vintage car' oils have ZDDP levels of 1100 or 1200ppm, and are good for flat tappet and roller tappet cams, where the spring pressure is significant.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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