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Wales
by Joske Vermeule, September 1
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Jun 14th, 2026
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Joined: Jul 2021
Posts: 172
L - Learner Plates On
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OP
L - Learner Plates On
Joined: Jul 2021
Posts: 172 |
Please can anyone advise the correct oil for the Gemmer steering box on our car?
I think the recommendation in the handbook that came with the car refers to the earlier box.
Thanks
Jack
Jack
1985 4/4 T/C 4 seater Royal Ivory
1934 F Type
2018 Pembleton SuperSport (self built).
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Joined: Mar 2009
Posts: 3,829 Likes: 69
Talk Morgan Addict
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Talk Morgan Addict
Joined: Mar 2009
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Acording to my 1987 plus 4 handbook (gemma box) it's
Castrol hypoy ep90, or duckhams 90s. Or texaco multigear ep 85w 90
Hope that helps but it is the handbook that came with the car so I can't be absolutely sure it applies to the gemma box.
Nick
Last edited by nick w; 04/08/22 08:19 PM.
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Joined: Feb 2013
Posts: 287 Likes: 8
Learner Plates Off!
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Learner Plates Off!
Joined: Feb 2013
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I'm by no means an authority on this subject but in the past I used Millers Vintage Worm Steering Box Oil in my 4/4s Gemmer steering box with no adverse effect
Owen
"bilibib"
1982 4/4 Twin Cam, Royal Ivory
1932 Super Sports, Duo tone(two tone)Green
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Joined: Feb 2013
Posts: 287 Likes: 8
Learner Plates Off!
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Learner Plates Off!
Joined: Feb 2013
Posts: 287 Likes: 8 |
Owen
"bilibib"
1982 4/4 Twin Cam, Royal Ivory
1932 Super Sports, Duo tone(two tone)Green
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Joined: Feb 2013
Posts: 287 Likes: 8
Learner Plates Off!
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Learner Plates Off!
Joined: Feb 2013
Posts: 287 Likes: 8 |
![[Linked Image]](https://www.tm-img.com/images/2020/02/06/GEDC0026.jpg) Ah,so it is Gemmer !
Owen
"bilibib"
1982 4/4 Twin Cam, Royal Ivory
1932 Super Sports, Duo tone(two tone)Green
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Joined: Jul 2021
Posts: 172
L - Learner Plates On
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OP
L - Learner Plates On
Joined: Jul 2021
Posts: 172 |
Acording to my 1987 plus 4 handbook (gemma box) it's
Castrol hypoy ep90, or duckhams 90s. Or texaco multigear ep 85w 90
Hope that helps but it is the handbook that came with the car so I can't be absolutely sure it applies to the gemma box.
Nick Nick, Thanks, that is the same info as in my 1985 handbook, hopefully Morgan would have changed in 2 years if an update was needed!
Jack
1985 4/4 T/C 4 seater Royal Ivory
1934 F Type
2018 Pembleton SuperSport (self built).
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Joined: Mar 2009
Posts: 3,829 Likes: 69
Talk Morgan Addict
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Talk Morgan Addict
Joined: Mar 2009
Posts: 3,829 Likes: 69 |
Acording to my 1987 plus 4 handbook (gemma box) it's
Castrol hypoy ep90, or duckhams 90s. Or texaco multigear ep 85w 90
Hope that helps but it is the handbook that came with the car so I can't be absolutely sure it applies to the gemma box.
Nick Nick, Thanks, that is the same info as in my 1985 handbook, hopefully Morgan would have changed in 2 years if an update was needed! I wouldn't be sure..it all depends how many they'd had printed...bound to use them all could easily be out of date! 
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Joined: Apr 2016
Posts: 161
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L - Learner Plates On
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I use Millers classic worm steering oil. Fairly easy to find on line. I use a tube and big plastic syringe and suck out the old oil from the top. Has worked well.
- Nelson
1966 Plus 4 RHD
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Joined: Aug 2015
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Talk Morgan Enthusiast
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Talk Morgan Enthusiast
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I use a decent brand 75/90 with a bit of Molyslip added
Works a treat
Arwyn
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