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differential and clutch fluids change

yonibio100

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regal sportback 2.0 awd
Hey, I have a Regal Sportback 2018, 2.0 AWD 260hp.
my differential is the GKN’s Twinster

I replaced my diff before 60k.
I want to change the differential fluids for maintenance and to avoid problems;

is this fluid correct?
clutch fluid:
Genuine GM Fluid 88901975 Electro-Hydraulic Power Steering Fluid

diff fluid:
MOTUL GEAR 300 LS 75W-90


how to change the clutch fluid, is it recommended ?
Do I need a car scan tool to reset the hydraulic System Service Fill/Bleed Procedure after the change?

this is a car
Repair Instructions :
 
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