Differential Gear Oil

[Wanganstyle]

Use whatever one can afford to change often.

In the enduro e30 redline 75-90 was burning a bit on the center capsule section even with the higher capacity cover; the discs barely wore though.

Red Line 75-140W went into the goldmember for thunderhill setting. If it leaves a burn coating after 2 races I will switch to OS Giken 80-250W and run a drilled/oil relieved center section like the TCD units.

26hrs and sharpie thickness for this unit is still there; surface was new before and only got slight wear ( 4 clutch discs un-sprung circuit setting with staggered thickness internals)

Flg has a car built to 99% percentile of r3v-abilities; most cars are not able to stress the driveline like so. Definitely on the higher end side of builds and stress from real drift use (king of europe spec for KOE level power/stress)


For full drift spec the settings and fluid requirements are much more aggressive than street car use.



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[Cletonius]

As far as my qualifications for differential specification:

I produce my own original billet cnc LSD; endurance race a 24v e30 myself and build professional differentials for Os Giken sponsored racers & track record holders

I know this is a thread about oil, but I'd really like to see that CNC LSD you built.

[Wanganstyle]

It's a production item for e46 non m and all newer cars (x1/x3, z4, 128i, 328i etc)
link with more details in sig.

This cutaway working Demo unit is at the Edge Motorworks Mountain view location (x street from Dinan)




A CNC Billet production design was needed to fit the very close case tolerance and assemble restraints of the 188K Kompact new age e46+ BMW 6cyl diff cases without the need to mill the iron case.

[aventari]

I use Redline Shockproof in my 3.73LSD in my track car. No complaints