Looking at changing my gearbox oil and rear engine mount to the powerflex one to hopefully keep my gearbox lasting (or at least thats what im telling myself). From threads I've read previously I see I'll need around 3L of 75W80 GL5 transmission oil and FUCHS seem to be the best recommended brand. However euro car parts are currently selling the same weight Valvoline oil for £6.84 a litre so seems silly to pay more if this product is as good.
Looking for advice if anyone can help?

I'm planning to do the same, I have 2l of comma 75w90 gl5, do you think that'll be enough?

Also how exactly would you do these 2 things, never attempted it before.

Jacob said:

I'm planning to do the same, I have 2l of comma 75w90 gl5, do you think that'll be enough?

Also how exactly would you do these 2 things, never attempted it before.

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Think its 2.3L or so you need so you might need some more.
Oil is, drain then take out the battery and I think the battery try and fill from the fill point underneath, from what I've read. The engine mount I'll have done by a friends garage.

So is the drain plug on the bottom of the gbox I'm guessing? Then fill from a hole underneath battery?

Ah, is the mount a specialist job?

Jacob said:

So is the drain plug on the bottom of the gbox I'm guessing? Then fill from a hole underneath battery?

Ah, is the mount a specialist job?

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Yup that's my understanding, do a quick google for m32 gearbox oil change, there's looooooooooooooads of threads about it.

Im presuming the engine will need lifting slightly to allow the removal of the old on so unless you've got a car lift etc. id presume so? Someone can correct me if I wrong though by all means.

Ok thankyou, I best order some more oil and a mount!
Thanks mate

I did mine with Tutela matryx from Fiat, 1.9l will do it. Don't you use the wrong spec though it would be a very expensive mistake!

Is 75w90 no good?

stepheno said:

I did mine with Tutela matryx from Fiat, 1.9l will do it. Don't you use the wrong spec though it would be a very expensive mistake!

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I've ordered some 70w80 gl5 oil as advised by people on a vxr forum for the Astra's. Would you say that's the right stuff? stepheno

Tutela matryx is 75w85. Recommended in handbook for sporting jtd gearbox. This is what I got...

Where the hell did I get 75w90 from? :')

For sale: 2l of gearbox oil

Jacob said:

Where the hell did I get 75w90 from? :')

For sale: 2l of gearbox oil

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That stuff will still work but if my understanding is right it won't hold its viscousness if that's a word lol at temperature like 75w80 or 85 would. Please again correct me if I'm wrong though anyone?

Go with the correct grade, the m32 is fragile enough to start with

stepheno said:

Go with the correct grade, the m32 is fragile enough to start with

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What's the difference between 75w80 and 75w85? Is it just that the 80 will keep its consultancy so to speak at higher temperatures? Total noobie with gearbox oil

Yeah it all to do with viscosity at cold and warm temps, but personally id stick to what Fiat recommend from new.

Don't forget oil cleans, lubricates, cools and protects components in the gearbox

Yeah, I'd best not tempt fate with the m32 box. Nit sure where I got that info from as I always try to get the right stuff :/

I got mine off shop4parts ?

stepheno said:

I got mine off shop4parts ?

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Hey mate,

just getting round to ordering a different grade Gbox oil, going for the handbook recommended Tutela Matryx 75w85.

You say you got it from shop4parts, when I search the 1.9 it suggests Tutela Technyx which is obviously not what I want.

Did you just buy the matryx 75w85 suggested for another car, e.g. Alfa 159?

Cheers

I went with the handbook listing, matryx is the one. I think I remember seeing that too for the gp 1.9 but it's wrong on their site

stepheno said:

I went with the handbook listing, matryx is the one. I think I remember seeing that too for the gp 1.9 but it's wrong on their site

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Will do, thanks