Which oil for gearbox

**feral4mr2** · 15-06-2006, 08:40 AM

christ i hope you didnt put the whole gallon in the box! hahahahahahaha

Originally Posted by hamgatan

haha no only about 3/4 of it before it started dripping over the plug hole..

whats a gallon? 3.5 liters? if you had a E51 or the fwd gze box you would use 4.2 liters of oil for total refill.

**1200det** · 15-06-2006, 10:00 AM

My Royal Purple oils have arrived for Engine , Gearbox , Diff , Power Steering

Ill report my thoughts on there Gearbox Oil in the R154 early next week.

.

**hamgatan** · 15-06-2006, 10:41 AM

Originally Posted by feral4mr2

whats a gallon? 3.5 liters? if you had a E51 or the fwd gze box you would use 4.2 liters of oil for total refill.

3.75 litres thereabouts.. went into the S54, so a slightly smaller box.. used probably 3.5litres before it went over the fill hole

**Toobs** · 15-06-2006, 05:07 PM

Originally Posted by Blue_Stivo

I currently use Penrite 10tenths Synthetic Gear oil SAE 75W90 which is API GL6

suited for prologed high temp usage, high load road use and also suited to limited slip and spin resistent diffs

the best part is it's 1/2 the price of redline at ~$55 for 2.5L I think

I've found it OK but want to try Redline as I've heard great things about it.

I've heard that GL5 gear oils aren't great on your synchros... GL4 gear oils are better

You've got it backwards...

Stolen from elsewhere:

API classification subdivides all transmission oils into 6 classes:
API GL-1 - oils for light conditions. They will consist of base oils without additives. Sometimes they contain small amounts of antioxidizing additives, corrosion inhibitors, depresants and antifoam additives. API GL-1 oils design for spiral-bevel, worm gears and manual transmissions without synchronizers of trucks and farming machines.
API GL-2 - oils for moderate conditions. They contain antiwear additives. They design for worm gears of vehicles. The oils recommend to lubrication of transmissions of tractors and farming machines.
API GL-3 - oils for moderate conditions. The oils are containing up to 2.7 % antiwear additives. They design for lubricating bevel and other gears of trucks. Not recommended for hypoid gears.
API GL-4 - oils for operating in different conditions - from light to heavy. They contain 4.0 % of effective antiscuffing additives. The oils are designs for bevel and hypoid gears which have small displacement of axes, for gearboxes of trucks, for units of axles. These oils are recommended for not synchronized gearboxes of US trucks, tractors and buses, for main and other gears of all vehicles. Now these oils are the basic for the synchronized gearboxes, especial in Europe.
API GL-5 - oils for the most loaded gears, working in severe conditions. They contains up to 6.5 % effective antiscuffing additives. The general applications of oils this class - the hypoid gears having significant displacement of axes. They recommended as universal oils to all other units of mechanical transmission (except gearboxes). The oils which have special approval of vehicle manufacturers can to use for synchronized manual gearboxes only. API GL-5 oils can be used for limited slip differentials if they correspond to requirements of specification MIL-L-2105D or ZF TE-ML-05. In this case the designation of class will be another, for example API GL-5+ or API GL-5 LS
API GL-6 - These oils for the most loaded gears working in very heavy conditions (high speeds of sliding and significant shock loadings). They contain up to 10 % high performance antiscuffing additives. They designed for hypoid gears with significant displacement of axes. Now class API GL-6 is not applied any more as it is considered, that class API GL-5 well enough meets the most severe requirements.

**river** · 15-06-2006, 05:29 PM

Hi,

So, Toobs, what oil for an old P51 gearbox? What can you get me?

seeyuzz
river

**1200det** · 15-06-2006, 07:04 PM

Its arrived ready for the weekends service

They sent me 5w30 when i was wanting 10w40 Grrrrr

.

**MR22ZZ** · 15-06-2006, 08:31 PM

Originally Posted by Toobs

You've got it backwards...

Stolen from elsewhere:

Cheers for that.. it appears that I have

**beso** · 15-06-2006, 09:42 PM

I paid $110 for 1 gallon of redline 75w90 api gl5/6 for my gze the other day at coventry auto parts in penrith. they will have to order it in most likely but will have it same day. worth talkin to the bloke if u want the price i paid

ps redline r0x.

any idea why we pay so much for the %#!^n shit in .au? its like $5us a quart in the states. fookn rip over here, but worth it.. 400k before it needs replacing.

**hamgatan** · 15-06-2006, 10:07 PM

Originally Posted by beso

I paid $110 for 1 gallon of redline 75w90 api gl5/6 for my gze the other day at coventry auto parts in penrith. they will have to order it in most likely but will have it same day. worth talkin to the bloke if u want the price i paid

ps redline r0x.

any idea why we pay so much for the %#!^n shit in .au? its like $5us a quart in the states. fookn rip over here, but worth it.. 400k before it needs replacing.

redline does indeed rock...2 days after putting in the MT90 i am feeling remarkable smoothness in the box and changes. and damn has the engine gone quiet! no longer do i have that diesel 4wd sound anymore... its just a soft purr.

i think at the end of the day we would end up paying the same as the yanks. because if we throw 1 gallon in our toyotas and that does us, think of how much theyre throwing in their trucks and SUV's.... probably ten times as much

**Toobs** · 16-06-2006, 09:59 PM

Originally Posted by river

Hi,

So, Toobs, what oil for an old P51 gearbox? What can you get me?

seeyuzz
river

Haven't had much to do with the P51 myself but from what I understand it's pretty much a W5X with porche synchro's right???
If so then I'd chuck in the same as Witzl and I use (i.e. GW Ultra Clear Low Vis API GL5 75W/90)
Price for 20ltrs = 1.5x what beso paid for a gallon of the redline equiv.

**monkeymajik** · 16-06-2006, 11:09 PM

Try going to a coventry reseller for your redline if you can. I was quoted about $15-20 cheaper from Thompsons and performancewholesale.

**WindeX** · 02-10-2006, 11:33 PM

Originally Posted by Toobs

Haven't had much to do with the P51 myself but from what I understand it's pretty much a W5X with porche synchro's right???
If so then I'd chuck in the same as Witzl and I use (i.e. GW Ultra Clear Low Vis API GL5 75W/90)
Price for 20ltrs = 1.5x what beso paid for a gallon of the redline equiv.

Who stocks the GW stuff?

**Toobs** · 03-10-2006, 12:05 AM

Toobs does... or Autobarn and I think Supercheap stocks it now too.

**WindeX** · 03-10-2006, 08:55 AM

Heheh, does Toobs ship?

**Toobs** · 04-10-2006, 12:14 AM

Nahh Toobs is a slack bastard... give GW a call, I'm sure they can put you in touch with one of their resellers.
They aren't like the other oil companies who would get pissed at a consumer calling the sales line... in fact I'm pretty sure you'll find they get a bit of a kick out of a consumer calling to track down a disty.
Sales: 1800 248 919