I'm adding an hydraulic loader to my lawn tractor. The tractor already has a factory hydraulic system, and the factory specifies 15w-40 as hydraulic oil.
By adding multiple extra hydraulic cylinders, I'm increasing the total volume of hydraulic fluid in the system, and I'll definitely be approaching the maximum capacity of the current reservoir, especially at higher operating temperatures. I'd like to avoid having to rebuild/expand the hyraulic reservoir.
Would synthetic 15w-40 motor oil have lower thermal expansion than conventional? I know that synthetic has better heat transfer properties, so the oil cooler may perform marginally better with the synthetic oil. But does synthetic expand more or less than conventional when it gets hot?
Thanks in advance.
By adding multiple extra hydraulic cylinders, I'm increasing the total volume of hydraulic fluid in the system, and I'll definitely be approaching the maximum capacity of the current reservoir, especially at higher operating temperatures. I'd like to avoid having to rebuild/expand the hyraulic reservoir.
Would synthetic 15w-40 motor oil have lower thermal expansion than conventional? I know that synthetic has better heat transfer properties, so the oil cooler may perform marginally better with the synthetic oil. But does synthetic expand more or less than conventional when it gets hot?
Thanks in advance.