Technical Gear oil for Ducato 2.8JTD 5 speed

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Technical Gear oil for Ducato 2.8JTD 5 speed

lancepar

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This oil seems to meet the spec' required for a 2005 2.8jtd.


PETRONAS TUTELA GEAR OIL 75W-85 API GL4 MOTORYCLE MOTORBIKE SCOOTER TRANSMISSION


What you think?


Cheers
Lance
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UK equivilent I use is Castrol Universal 75W-90, filled via the breather. Don't forget you need 2.7litres and not the 2.0 with the 5th.gear.
 
Ok - thanks for that.


Is this the stuff?


Castrol Universal 75W-90 Gear Oil Semi Synthetic 18277160 1 Litre


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That's what I put in mine as it was the recommended product listed by Castrol, and is compatable with API GL4 and GL5. There are other brands of course like Texaco, Mobil and Shell etc.for example, but it's worth putting in a quality oil whilst you're about it.
 
£11.75/litre on interweb. I'll get 3ltr and read up the old threads how to change it.
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Bye for now
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This is the oil that came from the transmission of my M/home, dirty black stuff.
2.5lt of it after 30,000miles.


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Just wondering if synthetic gl4 would be good even though Fiat state gl5 which has extreme pressure additives which eat yellow metal?
On a Hymer b528 how do you rationalise an extreme pressure necessity
 
Having researched this question gl5 will only corrode brass syncros at very high temps heres a link to a Benzworld forum where this is discussed

http://www.benzworld.org/forums/unimog/1358944-gl4-vs-gl5-gear-oil-plot.html

It's cleared this up for me anyway

Its not corrosion thats the issue with the syncros its errosion. The gl5 additives bond with the surfaces forming a hard coating. In the case of the brass/bronze syncros this coating gets stripped off *mechanically* and each time this takes some material with it. There are universal GL5 products with additives that are safe to use ask the manufacturer to check suitability.
 
Just wondering if synthetic gl4 would be good even though Fiat state gl5 which has extreme pressure additives which eat yellow metal?

Its basically a 1970s citroen car gearbox design with heavier bearings and casings now its hauling your motorhome it needs all the help it can get.

Isn't yours a 2004 in which case I'm fairly sure it doesn't have bronze syncros anyway.
 
Its basically a 1970s citroen car gearbox design with heavier bearings and casings now its hauling your motorhome it needs all the help it can get.

Isn't yours a 2004 in which case I'm fairly sure it doesn't have bronze syncros anyway.

Well I sent a message to Mannol in germany an old lubricants company who sell a synthetic gl5 at a very good price
Yes m8 it needs help especially now that its at 160ps:)

While I have your attention, I didn't know it was an old Citroèn design and at some point there was a mod done to overcome the lubrication problem with the added 5th gear, don't know if you can tell me when this was done? It's just great having an engineer like you to answer questions

Just found this:
I have an Elnagh motorhome on a Fiat Ducato chassis with a 1.9turbo diesel and a 5 speed manual gearbox registered in 2000 (W reg).
In May 2008 I had problems with the gearbox in that the synchro stopped working on 2nd and 3rd gears. I had to have it completely rebuilt with all new gears, shafts and bearings - a new gearbox with the exception of the casing. The problem was that water got into the gearbox via the breather. The company that rebuilt it are gearbox specialists and have had numerous cases of this. They also fitted a Fiat mod to the gearbox breather and I also redirected the windscreen drain away from the top of the gearbox.
Three weeks ago I had the same problem again but only with second gear. Although out of warranty the gearbox company, out of goodwill, agreed to fix the problem if I paid to have the gearbox removed, which I did.
I have now got it back and despite there being no water in the gearbox oil the same problem occurred. Apparantly, It is caused by the coating on the synchro hub coming off. Most gear synchos use steel with a bronze hub but Fiat in their wisdom use steel and steel with a coating of some unknown material which doesn't last. My van in the two years had only done 5900 miles - not very good advertising for Fiat!
Has anyone else had the same problem and does anyone have any advise to avoid this happening in say another 6000 miles. That is apart from the obvious - get rid of it. 90% of motorhomes are now on a Fiat Ducato chassis. Does anyone know if the problem has been designed out of later models?
 
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