Powershift Gearbox with oil immersed clutch

Powershift Gearbox with oil immersed clutch

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Discussion

Condi

Original Poster:

17,721 posts

176 months

Tuesday 30th May 2023
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The early Powershift boxes which have an oil immersed clutch, where does the oil come from/is shared with? I changed the engine oil the other day and put in some old Audi spec oil I had in the garage (correct weight, fully synth), but then was thinking that if the engine oil is shared with the clutch maybe the Ford oil has some additives the Audi oil won't have? I would guess the clutch oil is shared with the gearbox, but the gearbox is also used in other cars with a dry clutch, so it would be illogical for the 2 to use the same fluids in one version and the gearbox be sealed in another version.

Yours, confused of Yorkshire.

chrisch77

670 posts

80 months

Tuesday 30th May 2023
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Wet clutch DCT gearboxes like your Powershift use a common oil between the gearbox internals, clutch and the gearchange actuation system.

There is no connection with the engine oil. If you were to change the 'gearbox' oil you have to use the right grade of ATF because it has to the job of lubricating gears and bearings as well as being the hydraulic control fluid for the clutch and gearchange.

Condi

Original Poster:

17,721 posts

176 months

Tuesday 30th May 2023
quotequote all
chrisch77 said:
Wet clutch DCT gearboxes like your Powershift use a common oil between the gearbox internals, clutch and the gearchange actuation system.

There is no connection with the engine oil. If you were to change the 'gearbox' oil you have to use the right grade of ATF because it has to the job of lubricating gears and bearings as well as being the hydraulic control fluid for the clutch and gearchange.
Perfect, thank you very much. I had assumed that to be the case but thanks for confirming. Everything says that using the genuine fluid for the gearbox is important, a job for next year.

Gtom

1,635 posts

137 months

Thursday 1st June 2023
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You should be good for a while with the gearbox oil, I think it’s every 36k and I had it done after I got it, there should be an invoice in all the paperwork I gave you so you will know when it’s due.

Condi

Original Poster:

17,721 posts

176 months

Friday 2nd June 2023
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Gtom said:
You should be good for a while with the gearbox oil, I think it’s every 36k and I had it done after I got it, there should be an invoice in all the paperwork I gave you so you will know when it’s due.
Yes, thank you, another 19k from memory. No rush there. She's still going well. smile

Gtom

1,635 posts

137 months

Thursday 8th June 2023
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It’s good to know it’s still running well.

When it comes to getting the gearbox oil done, I got it done at a gearbox specialist in Hilton, they were a LOT cheaper than a main dealer.