Where To Get Oil For Diff

[niran]

Hey everyone

I have got a 2way Cusco diff and would like to buy some oil. On their website they say use an oil with a viscosity of 80w-140.

I rung up the local workshops(Xspeed, Intune, cypher industries, Nissan).

Xspeed said they will ring me back, cypher industries said they have redline oil however they recommend to use a 75w-90 because 80w-140 is to thick.

Intune and Nissan both just dont stock any of those oils, Nissan dosnt stock Nismo oil either.

So i just wanted to know what viscosity should i stick to? 80w-140 or as recommended by the workshops 75w-90? The car is going to be used on the track and also as a daily.

Finally does anyone know who in Perth holds redline, motul or nismo oil to buy?

Cheers guys, ni

[kingscorp]

Hey everyone

I have got a 2way Cusco diff and would like to buy some oil. On their website they say use an oil with a viscosity of 80w-140.

I rung up the local workshops(Xspeed, Intune, cypher industries, Nissan).

Xspeed said they will ring me back, cypher industries said they have redline oil however they recommend to use a 75w-90 because 80w-140 is to thick.

Intune and Nissan both just dont stock any of those oils, Nissan dosnt stock Nismo oil either.

So i just wanted to know what viscosity should i stick to? 80w-140 or as recommended by the workshops 75w-90? The car is going to be used on the track and also as a daily.

Finally does anyone know who in Perth holds redline, motul or nismo oil to buy?

Cheers guys, ni

Either 75/90 or 85/140 will be OK. Make sure it is a LSD oil. I believe most aftermarket diffs require a mineral oil, I know Kazz recomend mineral and say to avoid synthetics.

What does the Cusco instructions say?

[Steve]

Castrol LSX 85W 140

Repco, etc

is the best I have used on and off track (afforability versus performance)

and it will keep the diff alot quieter than lighter oils

[Dani Boi]

I would stick with whats recommended by Cusco (on the website) imo. 75w-90 is what people use in standard diffs.

[niran]

Hey guys

I think ive found the oil i am after which is the Motul 90PA Differential Oil..

Was reading a few threads on forums that had people talking about the Cusco 2ways and they found the Motul 90PA Differential Oil to be the best solution. It's a mineral based oil also..

Has any one else used this on there diff, if so how would you rate it?

thanks for all the help

Ni

[Steve]

No problem if you don't mind the extra wear and noise

[Scradly]

I use Castrol saf xa 75w90 in my cusco 2 way.

Drives mint.

Can get it from most auto shops

[niran]

No problem if you don't mind the extra wear and noise

I use Castrol saf xa 75w90 in my cusco 2 way.

Drives mint.

Can get it from most auto shops

Hey guys

Hmm i have no idea now which oil to choose. i say this because im getting a 50/50 opinion where some people state that the75w-90 is the best option, then other people say use a thicker oil such as a 80w-140.

cypher industries said that the 80w-140 will be to thick for a car that is also used on the road and that when i come into tight turns it may be to tight, hence why Zac said to go a thinner oil such as the 75w-90..

But then in the cusco website they state a 80w-140, so all in all im more confused about what oil to get then i was before.

I looked at the Motul range (as ive heard they work great with the 2ways) however the Motul 90PA is the only one which is mineral based. the 75-140 oils are all fully synthetic.

[niran]

No problem if you don't mind the extra wear and noise

Hey Steve

I am leaning towards the 80-140, 85-140 viscosity

Using an oil with such an viscosity in your diff have you found any problems when coming into tight corners or round about?

Cheers, ni

[Steve]

Hi Ni,

Now you are coming to what can be a frustrating but also rewarding part if owning a performance car

i.e. Knowing what suits your purpose best.

Best option IMO is do some r&d yourself - diff oil isn't too expensive, so try the 90 weight Motul, see what

you think, then try the 140 weight and do the same - that way you will know what is best for YOU

and don't be scared of synthetic oils, synthetics count amongst some of the best in the world, also, not all oils are created equal, some 140 weight oils will give alot better results than others (I have used both valvoline and a

couple of different castrols) I have also used 90 weight, but changed it

out about 2 days later cos I didn't like it

as for roundabouts/tight corners, you will most likely find the diff will lock and the tyrese chirp, or if you are just rolling around, the diff may clunk a little (I have found this is worse with lighter oil than heavier, the heavier oil quirtens down the diff - on the ones I have used anyway)

[Steve]

Ps sorry for the crap grammer/punctuation, iPhones don't suit

my fat fingers so well

[kingscorp]

FFS its all the same! dosen't matter what brand, make sure its mineral and is suitable for LSD. Then chose your viscosity! All the viscosites mentioned in the above posts will be OK.

For gear oils most oil companys use the similar additive packs and the base oils usually come from the majors ie Mobil, Shell, BP. So any reputable brand will be fine. Dont get carried away with brand names, do you really think so called specialists like Motul, Redline, Royal Purple invest more money into research than regulars Mobil, Shell, Castrol and so on? I dont think so!

Ash

[niran]

Hi Ni,

Now you are coming to what can be a frustrating but also rewarding part if owning a performance car

i.e. Knowing what suits your purpose best.

Best option IMO is do some r&d yourself - diff oil isn't too expensive, so try the 90 weight Motul, see what

you think, then try the 140 weight and do the same - that way you will know what is best for YOU

and don't be scared of synthetic oils, synthetics count amongst some of the best in the world, also, not all oils are created equal, some 140 weight oils will give alot better results than others (I have used both valvoline and a

couple of different castrols) I have also used 90 weight, but changed it

out about 2 days later cos I didn't like it

as for roundabouts/tight corners, you will most likely find the diff will lock and the tyrese chirp, or if you are just rolling around, the diff may clunk a little (I have found this is worse with lighter oil than heavier, the heavier oil quirtens down the diff - on the ones I have used anyway)

Hey dude

Thanks for all the information man, will try out a few oils and see how it goes from there.

Ni

FFS its all the same! dosen't matter what brand, make sure its mineral and is suitable for LSD. Then chose your viscosity! All the viscosites mentioned in the above posts will be OK.

For gear oils most oil companys use the similar additive packs and the base oils usually come from the majors ie Mobil, Shell, BP. So any reputable brand will be fine. Dont get carried away with brand names, do you really think so called specialists like Motul, Redline, Royal Purple invest more money into research than regulars Mobil, Shell, Castrol and so on? I dont think so!

Ash

no. i never said anything about a brand name however i read reviews and most guys on forums such as Skyaus, Hardtuned post good reviews

on the motul range, HENCE why i asked about it! not because i like the name nor care. i will go for a Mineral based oil as stated.

thanks, ni

[bubba]

Personally, I would be using whatever the manufacturer recommends for their diff..

[tomcio]

Coventrys have a good selection. Redline light weight shockproof is 75w-140.

[Steve]

Redline shockproof lightweight is great for gearboxes, shit in mechanical diffs - from personal experience anyways

[niran]

Hey everyone

Alright guys I’m going to try two oils out.. Firstly i went for the Motul P90A because 1) there’s been positive feedback saying they are great in the Cusco 2ways and quieten them down without it slipping. 2) The original owner of the diff said he used the Kaaz 2way oil which is a 80w-90.

i will run the motul oil first, if it seems to be an issue i will change over to the higher viscosity Castrol LSX 85W 140 and try that as Steve stated.

Thanks for all your input guys

Ni