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Discussion Starter · #1 ·
So I’m using model hvi 13 fluid ,in my unimount power plow . thinking of switching over to the “blue” fluid . I read not to mix fluids . Is draining/clean the tank and purging the rams and lines enough to get the old fluid out . Or does the system need to be flushed with a cleaner before adding a different brand fuid
 

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Two dump and fills and normal seasonal dump and fill at the end of the year should be fine.

Why are you switching fluid?

I found my 1yr old bottle of fisher blue to have some gel like gunk in it so went to what napa has.
 

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Discussion Starter · #5 ·
I drained and cleaned my plow but think some old fluid was left in the lines because my plow
“Froze” up again . So if I’m going to clean and drain the plow also purge the rams. I was thinking going from hvi 13 to the blue fluid
 
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