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Author Topic: Gearbox and Diff oil spec  (Read 1290 times)

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smokingomega

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Gearbox and Diff oil spec
« on: 16 April 2010, 11:34:27 »
Hi all

I`m just wanting to know what grade oil should be used in a manual 2.5TD gearbox and Diff. As far as I know its done 157000 miles and never been changed.

Cheers
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Marks DTM Calib

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Re: Gearbox and Diff oil spec
« Reply #1 on: 16 April 2010, 11:39:14 »
Auto or manual gearbox
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smokingomega

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Re: Gearbox and Diff oil spec
« Reply #2 on: 16 April 2010, 11:39:38 »
Manual
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2woody

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Re: Gearbox and Diff oil spec
« Reply #3 on: 16 April 2010, 11:45:25 »
it's the same oil for both boxes - the red Auto Transmission Fluid.

diff oil on the diff, tho.

it does give the figures in the driver's handbook
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smokingomega

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Re: Gearbox and Diff oil spec
« Reply #4 on: 16 April 2010, 11:47:33 »
what do you mean diff oil for diff? EP90?
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Marks DTM Calib

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Re: Gearbox and Diff oil spec
« Reply #5 on: 16 April 2010, 11:49:26 »
Quote
it's the same oil for both boxes - the red Auto Transmission Fluid.

diff oil on the diff, tho.

it does give the figures in the driver's handbook


Nah its not.

DexIII in the auto box

80-90 hypoid for the diff (although I rate BOA90LS and the LSD aditive seems to help the seals last longer)

And the gear box is a fully synth gear oil...the viscosity of which escapes me at the moment
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2woody

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Re: Gearbox and Diff oil spec
« Reply #6 on: 16 April 2010, 11:54:27 »
I need to check really, but I was fairly sure that the manuals use ATF

still, I could be coasting towards a "look it up before opening gob" moment....!
« Last Edit: 16 April 2010, 11:55:12 by 1417_stuart_grange »
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Marks DTM Calib

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Re: Gearbox and Diff oil spec
« Reply #7 on: 16 April 2010, 12:07:05 »
Quote
I need to check really, but I was fairly sure that the manuals use ATF

still, I could be coasting towards a "look it up before opening gob" moment....!


Lol, I know some Vx manuals do but, the Omega ZF derivative is a gear oil of SAE75W-85 API GL4 spec
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Marks DTM Calib

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Re: Gearbox and Diff oil spec
« Reply #8 on: 16 April 2010, 12:16:38 »
The getrag units used on earlier opel/Vx rear wheel platforms were ATF from memory
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smokingomega

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Re: Gearbox and Diff oil spec
« Reply #9 on: 16 April 2010, 12:18:44 »
So its 80-90 for diff and not too sure about manual box.
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Marks DTM Calib

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Re: Gearbox and Diff oil spec
« Reply #10 on: 16 April 2010, 12:19:56 »
No, manual box oil is above   :y
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2woody

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Re: Gearbox and Diff oil spec
« Reply #11 on: 16 April 2010, 12:21:29 »
surely the manual diesel is Getrag as well ?

actually I've just looked it up, it is
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Marks DTM Calib

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Re: Gearbox and Diff oil spec
« Reply #12 on: 16 April 2010, 12:23:02 »
Quote
surely the manual diesel is Getrag as well ?

actually I've just looked it up, it is


Info I have states that its a ZF derivative.....
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Marks DTM Calib

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Re: Gearbox and Diff oil spec
« Reply #13 on: 16 April 2010, 12:31:20 »
Just digging further.

Although the Senator and Omega share the same gearbox number in the form of R25 and R28.....they appear to be different boxes.

Further digging shows that they even have a different oil quantity and casing.

Some years ago I found a paper on them and the information sudgested that the box was a ZF unit made under license.
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Marks DTM Calib

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Re: Gearbox and Diff oil spec
« Reply #14 on: 16 April 2010, 12:33:56 »
TIS makes reference to the following:

The use of the modified R 25/ R 28 manual transmission in the Omega - B has lead to the introduction of a new high temperature transmission fluid.

Quality  SAE 80 Kluber - 1.2 litres
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