Hydraulic system Oliver Super 55

Cornell1973 · Sep 4, 2020

I recently purchased an 1957 Oliver Super 55 with a loader.
The manual says to use 10W30 oil in the hydraulic system.
Would that be correct seeing as there is a loader on this tractor?

J. Schwiebert · Sep 4, 2020

I would change the filter and the oil. That oil will work fine. If it is a gas model use the same oil as you use in the engine. One less oil to keep . A 1957 should also use the late style filter( same as a 550 uses). Filter should be on the front of the hydraulic unit.

Sprint 6 · Sep 4, 2020

I ran Universal Tractor Fluid in mine.
Worked great and kept the pump quieter.

Hydraulic system Oliver Super 55

Cornell1973

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J. Schwiebert

Well-known Member

Sprint 6

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