i use redline in the diff and tranny
The viscous fluid in the VLSD is sealed inside. All you need in there is a good gear oil like Royal Purple Max Gear.
The same works great for your tranny.
The guys at mopac told me not to use royal purple in my tranny because it didn’t have an additive in it and it might eat away the plastic gears in the tranny like your speed sensor gear. I used redline oil MT 90.
ok,I got a question of my own.me and my buddy have been agruing about this for awhile,is the silvia or the skyline the jap version of the 240?
neither
im pretty sure you are not supposed to use syncromesh in your tranny. i use redline MT90. mopac carries it. i use Q diff fluid for the VLSD