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 Gearbox oil 
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Firing on two.

Joined: June 22nd, 2014, 8:09 pm
Posts: 905
Location: Reading, Berks UK
Post Gearbox oil
Hi all, which is the best gearbox oil to get these days please? Last time I changed it was about three years ago and all I remember was it was hard to get something of the right type.


June 30th, 2014, 12:37 pm
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Firing on two.
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Joined: February 11th, 2009, 12:32 am
Posts: 3322
Location: Chichester, West Sussex
Post Re: Gearbox oil
GL4

75w80

http://www.halfords.com/motoring/engine-oils-fluids/gearbox-oil/halfords-gear-oil-ep-75w-80-gl-4-1l

It even has "for Citroen and Rover transmissions" written on the label.

There's two versions, one is 75/80 the other is 80/90. DONT get the 80/90, the packaging is very similar!


June 30th, 2014, 1:39 pm
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Firing on two.

Joined: June 22nd, 2014, 8:09 pm
Posts: 905
Location: Reading, Berks UK
Post Re: Gearbox oil
Awesome, thanks. The EP will be meaning the same thing as hypoid then I assume?

I had it floating around in my head that hypoid was what to look for, for some reason..


June 30th, 2014, 3:11 pm
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Firing on two.
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Joined: March 24th, 2009, 9:18 pm
Posts: 243
Location: 15340 Mourjou France
Post Re: Gearbox oil
I've always been confused about oils. I just about understand the point of having a multigrade engine oil: when the engine is cold you don't want too much viscosity.

But why 75w/80 for a gearbox? It doesn't change temperature very much, and for that matter how big a difference is there between 75 and 80 anyway? Gear oil used to be straight EP 80 once upon a time (that's what is supposed to go into my H-van, for example).

Incidentally Haynes says 80w/85 for the gearbox, but what do they know?

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Dennis usually in the Cantal

1964 HY 72 (Type H, campervan)
1969 AZU 250 (formerly French Post Office van)
1982 Red Special
1983 Burgundy/Black Charleston
2017 Skoda Octavia Estate 1.4 DSG


June 30th, 2014, 5:29 pm
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Firing on two.

Joined: December 22nd, 2013, 5:01 am
Posts: 300
Location: Netherlands
Post Re: Gearbox oil
http://www.redlineoil.com/product.aspx?product=50204


June 30th, 2014, 7:20 pm
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Agony Aunt - You have a car problem? Speak to Ken

Joined: March 6th, 2009, 1:40 am
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Post Re: Gearbox oil
http://www.smithandallan.com/prodpage.aspx?id=1862

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June 30th, 2014, 10:03 pm
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Firing on two.
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Joined: February 22nd, 2012, 10:34 am
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Location: Greece
Post Re: Gearbox oil
:roll:
Warning About Gear Oil
http://www.benchmarkworks.com/articles/ ... aroil.html

Do not use GL-5 oil.
http://www.citroen-sm.org/wiki/index.ph ... ission_Oil

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July 1st, 2014, 3:13 pm
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Joined: March 24th, 2009, 9:18 pm
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Location: 15340 Mourjou France
Post Re: Gearbox oil
Thanks for the link, Ken - that Smith & Allen oil looks very good value for money.

The EP80 at £13.58 for 5 litres is just what I need for my H-van, and much cheaper than the 75w/80, which is just a few pence less than £25 for the same amount. Perhaps it would do for 2Cv gearboxes too?

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Dennis usually in the Cantal

1964 HY 72 (Type H, campervan)
1969 AZU 250 (formerly French Post Office van)
1982 Red Special
1983 Burgundy/Black Charleston
2017 Skoda Octavia Estate 1.4 DSG


July 1st, 2014, 6:33 pm
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Agony Aunt - You have a car problem? Speak to Ken

Joined: March 6th, 2009, 1:40 am
Posts: 3675
Post Re: Gearbox oil
Hi Dennis,
I do use it in customers' A series cars and also in the 3 Dyanes we've got in daily use.
It's changed at 10,000 miles or annually, whichever comes first.
The 20 litre drums are a handy size, not sure I could drag the larger ones around... ;)

ken


Dennis wrote:
Thanks for the link, Ken - that Smith & Allen oil looks very good value for money.
The EP80 at £13.58 for 5 litres is just what I need for my H-van, and much cheaper than the 75w/80, which is just a few pence less than £25 for the same amount. Perhaps it would do for 2Cv gearboxes too?

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July 1st, 2014, 10:57 pm
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