transmission ,hydraulic change

[7520]

it's time to change hyd +trans oil. hyd + trans+brakes run together. manual says use 75w or 80w with gl4 rating. this is what it recommends. shell donax td. mobil fluid 422. tractelf bf 12.tractelf C4 1000. exxon torque fluid 56. I have not been able to find any of these. are these oils 75 or 80w or GL4 rated ? all the utto oils ihave found has hardly any info about the product weight or rating. Iwant to put in the right oil. Is there a place that i could cross referance brands? Or suggestions to use in Mahindra 7520. Thanks in advance for reply.

 

[TractorLegend]

GL4 and Gl5 are 80-w90 gear oils---you could use GL5 if you want also---I think normally synthetic gear oils have the GL5 rating. I usually opt for synthetic (RedLine brand) in my equipment for preference. Opinions vary mostly based on cost---no one can argue the quality.
I dont have much input on the hydraulic stuff---maybe the 5 gal buckets from Auto Zone or Napa are ok??
Mobil oil website has alot of info and so does Chevrons.