I work for a aquaculter company and we have a old pettibone crane. Its all wheel drive and steering i think a 30. It says to use dextron 1110 ( i think)or atf in hydraulic system. It has atf in it and they put 10 gallons of valvoline 36 in it. Will this causea problem or is it ok i know nothing about cranes. I am going to have to mantain it from now on any help would be greatly appreciated thankyou
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