[Shop-talk] Hydraulic fluid question

[Marc]

Thanks for the rather direct answer, and to all for telling me waaay 
more then I ever wanted to know about the topic! The more I googled, the 
more conflicting the info. Ain't the internet grand?!


Randall wrote:
>>  Does that viscosity number factor like regular
>> oil? In other words, higher number, thinner oil?
>>     
>
> Er, no, in both cases a higher number means a thicker oil (at a constant
> temperature).  
>
> But "10 weight" covers a range of centistokes values, and apparently 46 (at
> 40C) is within range, so the oil you have should be fine.  Pour point of ISO
> 46 is under -20F, so you should be fine @ 40F.
>
> Randall
>   

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