I advice again please! Gearbox oil

[fastjet]

Hi, is the info below correct for a C5 2.0 Hdi manual 5 speed box, particularly the capacity?

Thanks

Manual gearbox
The engines are coupled with an ML5T manual gearbox with gear ratios to suit the type of engine and vehicle characteristics.
The gear change mechanism is cable driven to reduce vibration, and driving comfort is further increased by a specially designed synchromesh lubrication system. The gearbox is lubricated for life (capacity 1.8 litres). Total BV 75W – 80W gearbox oil is recommended.

[Hell Razor5543]

That looks correct to me. Check out GSF for their prices, they usually are very good.

[white exec]

That's correct.
Use Total Transmission 8 gear oil, which is 75W-80, and importantly GL-4.
PSA manual boxes work superbly on this, and is the recommended oil across the range.
Can be had from any Cit/Peu spares counter, if not available elsewhere.
Don't use a GL-5 oil.

[fastjet]

Thanks for the confirmation.

[fastjet]

So, what is the difference between api gl4 and api gl4+ ?

[white exec]

In a nutshell, GL5 has additional anti-friction additives. These can interfere with the action of the sychromesh on some manual boxes, resulting in baulky changes, and can also attack copper- and brass-based components in the box. For this reason, where GL4 is specified, it should be used.

GL5 does not supersede GL4, which some suppliers might claim. There are also some GL4/5 oils about, which contain levels of additive between the two. Best not to risk these, when the pukka stuff is available.

Good few articles on the web about GL4 and GL5 specs and suitability.

My local Citroen workshop had a 200-litre drum of Total Transmission 8, which they use for all manual box filling. They were happy to decant me 5-litres of it.