Gearbox Oil (yet again)

[MDK87]

Hi guys, I know this type of thread has been done over and over esp. with our Galant's and the notorious problem of GL5 lubricants "eating" the synchronisers.

Although I was at the local autobarn and came across a 75-90W "Royal Purple" gear oil. I'd never heard of it before.

So my question to you guys in the know is, what type of gear oil would you suggest for my car? The gearbox is a 3.545 VR4 box converted to FWD via welded centre diff. (not really important info I know but anyway), has a Quaife ATB Front LSD in it, (I am told by Quaife that there is no requirement for special LSD lubricant as it's a mechanical LSD) and it's been re-built 5,000km's ago.
So far I just used a generic Valvoline duragear or something for the initial break-in period.

Suggestions so far -

- Castrol Syntrans
- Redline MT90
- Motul Gear 300
- and the guy at autobarn was pretty sure that this Royal Purple 75-90W would work nicely for me, he reckons it's better than motul and redline, but then again he referred to the GVR4 as an import so he might not know as much about them as you guys, which is fair enough. I dunno if it's GL5 though. On the bottle it said it was suitable for both GL4 and GL5 applications, which is the reason I'm asking you guys.

I appreciate any input you guys have to offer.

Thanks.

 

[mattrat]

syntrans shut my noisy as fuck centre diff up in my ggsr box, highly recommend it
is royal purple oil really purple lol?

 

[MDK87]

^^^^ Dunno. I was thinking the same thing! haha

 

[JAP63]

I used the castrol syn trans, and i couldnt speak better of it, it was awesome, and my gearbox wasnt in the best health either, it wasnt that expensive either

just make sure you dont use any GL5 oil or GL5 additives, or any additive that attacks yellow metals, basically and sulphur additives are a no no...unless you want pitted synchros!

 

[JAP63]

From memory it was a 75W or something, it might have even been the reccomended oil for GSR lancer gearbox, it worked well anyway

 

[MDK87]

Thanks for the replies guys. Well Syntrans is looking the goods so far.

 

[MDK87]

From memory it was a 75W or something, it might have even been the reccomended oil for GSR lancer gearbox, it worked well anyway

Page 1, 3rd paragraph. (You need Adobe Reader).
That's why it was suggested to me.

http://www.castrol.com/liveassets/b.../local_assets/downloads/s/Syntrans_B13127.pdf

 

[JAP63]

Thanks for the replies guys. Well Syntrans is looking the goods so far.

Just give it a go, its probably a good first option, since it will likely be a cheaper option than royal purple.

But redline oil sticks pretty well too
http://4gtuner.com/site/showthread.php?t=10689

But ive heard some horror stories about MT90 too, i cant remeber what either it was the wrong type or it did something, it might have been redline shockproof or something like that

 

[MDK87]

^^^ You always have the answers dude, so I'll take your advice.
It is alot cheaper than the rest as well.

Thanks.

EDIT: Yeah it was redline lightweight shockproof Jamie.

 

[JAP63]

EDIT: Yeah it was redline lightweight shockproof Jamie.

Yeah sounds familiar, remeber what the issue was? i cant, it was somone on this forum i think

 

[MDK87]

Yeah sounds familiar, remeber what the issue was? i cant, it was somone on this forum i think

http://4gtuner.com/site/showthread.php?t=8124&highlight=redline+lightweight

 

[JAP63]

Found this too

http://4gtuner.com/site/showthread.php?p=58530#post58530

Seems that oil i used was the VMX-M75w-85w, dunno if thats the syn trans gear your looking into

 

[Pyro]

Yer I remeber that one! Dont pick the red stuff!

castrol muti-trax is what I used/use, it's so cheap and worked great in my Aus-Spec box!

 

[rob323]

Go the royal purple, be the guinea pigs for us .