Stay away as long as you can. They both use EGR (Exhaust Gas Return)technology to slow the burn of fuel in the cylinder to reduce the formation of Nitrous Oxides. New Tier 4 engines use DEF Fluid this gives them better fuel economy over tier 3 because not as much EGR is used. Also the newer engines have many more electronic sensors on them to manage the emissions. These sensors lead to more Check Engine lights which can only be corrected at the dealership, which means more down time which means more expense to operate. If you can, find or use your older equipment for a looooong time.
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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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