Ok sorry it took so long to reply. For my 2017 buick envision awd 2.0 turbo. The transfer case did take AC delco 10-4017. Color and viscosity confirmed. I added Blue devil crankcase seal. It appears leaked stopped. 2 oz / qt. Removed 18 oz. It only took 24 oz. ( pint and a half). Till...
Thank you javierH19. I’m going with 104017. Owners manual does not state what to use. If it does they are hiding it pretty good. Just an aside. I have a minor leak in the transfer case seal to rear drive shaft (a few drops per week) GM dealership told me rubber o-ring type seal can’t be...