Guys
Handbook recommends
Two grades of manual gear oil

Tutela 75W-80 experya

Or

Tutela 75W-85 matryx

On a 2012 3.0 180 manual box euro 5

What's the difference and which ones best?

I change it each 100,000 miles, dealer had done it up until now, mates garage will do it this time, but I want the best recommended oil

mate the only difference between the 2 oils is the 75w85 will handle higher temps i use 75W80 in mine yes i know its a 2.3 engine but the boxes are the same I havent used genuine oils since 100000kms at the moment im using castrol synthetic 75w80 transaxle oil which is the same as the australian spec ford falcon power steering oil ive been in temps getting close to 48C with no problems like you i do long distance kms fiat will tell you otherwise but they will push their own oil first.BTW im also using the same oil in the power steering and caterpillar coolant despite the dire warnings from my fiat dealer ive a mixed fleet of vehicles and rationalization is key about the only fiat product im using is the engine oil Cheers Adam
PS always use fully synthetic in your gearbox it runs cooler than mineral oil

Cheers mate

Don't mind using the "genuine" oil as its always done me good. The last change however I need to look to see what was listed as it came to me after posting, it was in fact not a main dealer who changed it a year ago, and what ever grade/make they popped in, was heavier on gear selection, sounds like the 85 is the higher spec from searching online, so will prob pick up some from fiat

Cheers
Neil

mate the heavier oil ie.70w85 will make shifting heavier the difference in temp range is about 8 degrees celcius one is classed as GL4 and one is GL5 the GL4 is 70w80 its more to do with the way the oil is moved around and carried by the reciprocating parts old school mechanics will argue that a heavier oil is better just look what they used to use in tractors and trucks they say 80w90 85w140 and look how good it worked yadda yadda yadda my trucks run a fully synthetic 50 weight oil in their gearboxes in severe service if i use the old time oils i cant change gears and they run warmer because of the resistance of the oil the price difference i know is marginal between the 2 oils you are contemplating i personally would use the lighter oil because it shifts easier and is easier for the engine to turn ie.less resistance also should give better milage I change mine every 12 months with testing carried out by Cat and has seen outside temps above 48 degrees celcius with no problems just my 2 cents worth Cheers Adam

This is the stuff main dealer puts in,
As you say a heavier oil (which I believe was fitted last time) is stiffer,

Apparently it needs to be fed in through a breather, any ideas on what breather looks like and how easy it is to do?

If you can open the attachment in the 2nd post in this thread, I think it shows the filler and drain plugs http://forums.motorhomefacts.com/149-fiat-ducato/92676-topping-up-gearbox-oil-2008-fiat-ducato.html

Deefordog said:

If you can open the attachment in the 2nd post in this thread, I think it shows the filler and drain plugs http://forums.motorhomefacts.com/149-fiat-ducato/92676-topping-up-gearbox-oil-2008-fiat-ducato.html

Click to expand...

thanks Deefordog,
had to sign up with them, but info gratefully received

Sorry to bump this thread but as I'll be changing the gearbox oil in our 3.0lt motorhome, am I right in thinking that any 75w80 FULL synthetic oil will be ok?


Price on-line seems to be about £10 a litre for Fuchs, Motul, Millers etc., or is a there a less expensive oil out there?


Thanks guys and a happy new year .

75w85, you can put any grade in, selection, wear, temperatures will vary,
If in doubt check fiat dealers service dept, I did, choice of two, different specs, so I just asked which one is best, which one would he put in if it was his van, the technyx, was pence more than the other option,

That's on my 2012 euro 5 3.0
I assume the gear oil is the same on other years

Defo made my gear change easier than the random unknown oil that an independent garage fitted a year ago

Piece of mind

Ps, the genuine oil was about same price plus the vat

Ah, I see - 75W85, my bad.


I thought after Adlarplant's reply above, I got the idea that 75w80 might be the oil for my 3.0 Euro 4.


So 75W85 is the one to go for?

If in doubt mate ask the dealer, but mine is fine with it, but is a newer box I wouldn't know if earlier boxes require same or different

Neil. On page 261 of the hand book it shows the Tutela car experya (75w80) is for the 2.3 and the Tutela car matryx (75w85) is for the 3.0.

I used the Matryx in mine and the gear change is fine.

You do not have to fill through a breather hole their is a plugged filler hole about 2/3 up the gearbox behind the airfilter, it needs a hex(alan key) socket to remove and is easier to fill using a funnel and tube. This is not a fill level hole and you should put the correct amount of oil in (2.9 lts)

Mike

Yes Mike, we've done mine beginning of December, but as well as the matryx there is now the better technyx oil, which as I say the dealer offered both giving me the choice,

The technyx is a newer better spec, parts guy didn't know.
When asked the technician which he would use if it was his, technyx was the one

Wether this oil is good for the earlier euro 4's I don't know hence why I say best to ask dealer

Peace of mind knowing you've the best oil available

Sorry to ask another dumb question.........


I appreciate that it's best to have the oil warm before draining but would the gearbox oil warm up with just the engine idling for say 15 minutes or does the vehicle need to be driven for a few miles?


Basically, does the gearbox oil warm if the vehicle's stationary?

i usually do mine cold so its at the bottom of the box it drains quickly enough Cheers Adam

We did it cold,
Qty is 2.9ltr
Technician said drain it thoroughly (leave it some time) & put all 3ltrs in

Have checked the Fiat owner's manual that came with the MH and yes, it says 75w85 for the 3.0lt and 75w80 for the 2.3lt.
Seems that 75w85 is slightly more expensive than 75w80 though - damn .
Am I really risking it if I use 75w80 as this seems more readily available?

What's the difference in price?

This is what I paid for the genuine tutela technyx at fiat/iveco service centre

Thanks for that price Rolopolo, beats anything I've seen on the internet or at local suppliers.
Off down my local Fiat Commercial to see what they can do. Failing that, Iveco dealer here we come.