Ahh so many dirty minds, and we wonder why VW's accumulate.

After someone who can sell me Redline oil MT90 for less 120 dollars for 4ltrs, if they exist? 75W90

Can i run the same oil in front diff of T3 syncro as i plan to put in Gearbox in other words can i use the same MT90 Redline oil in front diff? 75W90.
Or do i have to or am i better off putting in the shockproof oils and any idea on what dollar mark it sells for?
Comparisons for oils vary but the redline range offer less friction wear and the serviceable use for box oil is guaranteed for 200,000K's with an extended range of 400,000k's. It apparently eliminates grindage between changes and alot more. Bang for the buck is much the same as Castrol, Shell, Mobil etc.
I am also dumping the oil (fullremoval)from 2wd caravelle box and adding Redline MT90 to it as well. Full synthetic stuff worth a motza but it is the ducks nuts apparently.
Has anyone done the same and does the oil do as advertised?
Operation taking place at end of month.
Cheers