Strange Hydraulic Fluid Cloudiness (Massey GC1725M)

[Robin Veerman]

True enough, but it’s enough of an issue that some oil manufacturers state how their oil addresses that very issue, … or not.

 

[hube2]

Update:

Today, almost 60F outside, fluid did not become cloudy during initial warmup. It must be something to do with the fluid being thicker when cold and releasing tiny air bubbles when rapidly depressurizing as it returns to the sump as I read during my research.