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51Jay , I changed the g/box oil in my R33 , it took 3.5L to fill it so that it dribbled out of the filling hole on the side . Seems this is the method most people use to fill their g/box , if your figure of 2.8L for the RB25DET is correct then a lot of people are overfilling their boxes . I hope we dont all start popping seals .

I filled my box with Castrol VMX80 and it didnt get rid of the annoying rough shift . So I bought some Nulon G70 Manual Gearbox Treatment which is an additive which claims to provide smoother gear changes , reduce noise and wear .

I'll post back here with any info after I try this stuff for those with a similar problem as there seems to be a few .

G'day all , I've added the Nulon G70 , a 125mL tube of it and yes it does help with smoothing out gear changes .

Personally I think if you can afford the Redline oil then get it . For those on a tighter budget $14.50 for a tube of Nulon G70 may do the trick .

Also I read my owners manual and it does look as if its 2.8L for the manual g/box in a r33 RB25DET so I also adjusted the fill level .

So after adding the Nulon G70 I noticed a smoother shift right away , still not what I'd call a slick shift but no more crunching .

  • 2 weeks later...

Can anyone recommend a diff oil for the R33 LSD? I have heard of Shell synthetic and redline? Which redline was it? I just did the gearbox oil last night with the lightweight redline stuff, and yet to drive it, but am thinking of doing the diff soon. Any advice would be appreciated.

Thanks

Locutus: I used the shell because reline is hard to come by here (country NSW) But its up you, I have no quarms with shell....

Anyone else who has done thier diff notice that black shit stuck to the bungs??? I was told that that is the hard surface that has chipped off the gearfaces inside.

Sumo

  • 2 years later...
  • 1 year later...

I'm changing my gearbox oil soon and have decided to go with the Red Line Shockproof.

My question is... Should I use the SuperLight or the LightWeight??? I tend to thrash my car a fair bit. FYI the SuperLight is rated at 70W90 and the LightWeight is rated at 75W140.

P.S. I have an R34 GTT.

Nissan recommends a 75W90 for gearbox...so i would go superlight weight (same with Diffs, 80W90...so 75W90)

BUT that being said i had lightweight in mine a while ago and was Great but when you trashed a bit and oil warmed up...down shifting got rather tight (gotta push harder to get into gear)

while i have used Redline Oil, and it is fabulous stuff!!! KNOW THIS it is designed for racing...and therefore designed to be changed out every 10000k...so while it is great, it doesnt last very long

for the above reason is why i have changed to Royal Purple Oil and it is just as good (or better) in every way as Redline Oil

so my recommendation is +1 for Royal Purple MaxGear

RellikZephyr

use LSD oils for LSD. shouldnt get a whine out of it. gonna change my oils with castrol oils at the workshop. 75w-90 should be fine for gearbox

lol, you realise the question you answered was asked in March 2003!!!? How do you find these threads to reply to? and why?

  • 1 year later...
lol, you realise the question you answered was asked in March 2003!!!? How do you find these threads to reply to? and why?

I have often wondered the same thing! Especially in the for sale forums where people make an offer for something posted 5 years ago.

Oh, and please don't ask me how I found this thread or why I replied to it. Trade secret!

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