It all depends on the program or schedule you set up for oil changes. New vehicles today the computer counts the engine hours, idle times, total rpms and wheel rpms, how many times it's been started what the temp was then calculates the percentage of oil life left. 35 yrs ago they told us in school that oil does not break down it just becomes contaminated from the burning of the fuel and what ever is sucked in thru the air filter(s). I change my personal car and truck oils every 3k miles.
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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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