standard replacement box and diff oil

[DR-vyss-108]

Hi, as the title suggests, what is the standard replacement t56 and diff oil for a VY? askes my local holden dealer and they were no help, sorry for the dumb question, cheers, David

[aratic]

Standard replacement fluids are Dexron III ATF in gearbox and 80W140 GL5 gear oil with Sturraco 8098 additive in the diff, although most use Castrol SAF-XA which has the additive included

[DR-vyss-108]

thanks for that, is dexron the brand or is it valvoline?

[DR-vyss-108]

http://www.supercheapauto.com.au/online-store/products/Valvoline-Dexron-III-Auto-Transmission-Fluid-20-Litre.aspx?pid=134232#details

would this do the job?

[aratic]

Dexron is the type of fluid, all the main oil companies make it

[DR-vyss-108]

awesome, thanks for that mate

[DR-vyss-108]

one more question, how much oil is recommended for gearbox and diff?

[aratic]

Try this

http://www.datateck.com.au/lube/castr_au/default.asp

[DR-vyss-108]

link didnt work man

[VL Executive]

4.4 Litres for the gearbox and 1.7 litres for the diff according to the Castrol lube guide.

[DR-vyss-108]

good stuff, thanks alot :)

[nick_]

Being an angry VY, I suggest that you don't put in any diff oil with the diff chatter additive. It is not a good thing to have in any performance vehicle as it severly reduces the performance and reliability of your LSD. Have you fitted an aftermarket diff centre?

[Blown 454 AWD]

If you're producing over 300 fwkw then you should go for something more protective for your T56 and diff.

The Mainlube 154 series of Synthetic Solid Boundary E P gear Oils have proven many times to be superior to anything else on the market.

Hoe much oil a diff hold .... fark all, what's a diff worth .... Heaps

Cheers

Steve

[pah]

I visited Mal Wood last year. He rebuilt my Tremec 6060 to make it less clattery.

Before I sold my VY, I'd accepted advice from a workshop to fill the T56 with other than the Holden specified auto transmission fluid. I'm not sure. It may have been gearbox oil? I hope not.

If my memory is correct, I think Mal Wood suggested that gear oil in T56's stuffs the synchros. I guess I could check on that point. EP - does that mean it's a gear oil not a transmission fluid?




PAH


PS: If you by an XR6T, buy the 6 speed auto NOT the manual. Mal did a good job smoothing out my gearbox and diff clunks but I doubt it's as refined as a ZF auto. A torque convertor no doubt hids a multitude of transmission clunks.

[Blown 454 AWD]

I visited Mal Wood last year. He rebuilt my Tremec 6060 to make it less clattery.

Before I sold my VY, I'd accepted advice from a workshop to fill the T56 with other than the Holden specified auto transmission fluid. I'm not sure. It may have been gearbox oil? I hope not.

If my memory is correct, I think Mal Wood suggested that gear oil in T56's stuffs the synchros. I guess I could check on that point. EP - does that mean it's a gear oil not a transmission fluid?




PAH


PS: If you by an XR6T, buy the 6 speed auto NOT the manual. Mal did a good job smoothing out my gearbox and diff clunks but I doubt it's as refined as a ZF auto. A torque converter no doubt hides a multitude of transmission clunks.

A proper gear oil is an E P gear Oil, E P (extreme pressure) the chemical make up of E P gear oil when activated with extreme pressure releases and oxidising chemical the forms a light layer of oxidised metal over the gears (the smelly shit when you remove the diff backing plate (means the E P has been activated)

It's this chemical the T56 has a problem with, it dissolves the bonding glue the holds the syncros to the bulk ring. This is what Mal Woods is talking about. Most E P Gear oils have this problem with the T56.

Mainlube E P Gear oil has no reaction to the bonding therefore is safe for use in the T56.

Cheers

Steve