Gearbox Oil Change

[IamRy]

I was told the gearbox service interval was 60k miles in the UK. Our normal service regime is slightly different than Europe anyway, with them being 10k/12 months.

I'm willing to bet that 60k would be fine as our gearbox is certainly nothing special but I wanted to do a service early on in the life of the car to account for the wear process.

 

[R Veloster N]

It's not that hard to do it yourself or to have a shop of your choice do so.

 

[Cavaco90]

Guys, according to the manual, the amount of gearbox oil is 1.8L, is this info correct? Which means 2 of these bottles (some remain of course), labour and i'll be happy. Problem, the dealer is quoting me, off record, 140€ (at least) for everything saying that the oil is expensive and requires many liters (he mentioned 4...not joking) so i think i'm not going to leave this job to them :\

 

[IamRy]

It cost me £39 including letting the dealer source the correct oil (they ordered 3L). Tell them to stop messing you about and give you a proper quote.

 

[Reddave]

The reason gearboxes and axles oil does not need changing as often is that the oil is not being contaminated by the igniting of fuel. Plus the engine temperature is a lot higher than that of gearboxes and axles.
I still change my oil more than the manufacturers recommendations. Dave

 

[R Veloster N]

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Gear oil weight and viscosity, is the primary reason diff and gearbox oil is not changed as frequently.

Enjoy the forum there a ton of information to glean thru.

 

[PaulD]

Hi all
I have a notchy 1st gear, and the usual 5th to 6th difficulty sometimes - i have 16,000km, and it hasn't really gotten better with age.
Anyone tried Penrite Pro Gear 70W-75? Seems to meet all the technical requirements of the oil, and numerous reviewers saying this resolved their difficult shifts in the Tremec gearbox in Holden/HSV V8s, infamous for stubborn shifting.
https://www.penriteoil.com.au/products/pro-gear-70w-75-full-syn
I'm keen to try a different gear oil, and see how the shift feels. Really don't want the dealership removing the gearbox when the problem can be improved with better fluids.
Edit - sorry, i see this is a UK specific thread, so Penrite (Australian brand) may not be relevant - but Redline and Motul have similar products in similar specs.

 

[mesai30n]

Hi all
I have a notchy 1st gear, and the usual 5th to 6th difficulty sometimes - i have 16,000km, and it hasn't really gotten better with age.
Anyone tried Penrite Pro Gear 70W-75? Seems to meet all the technical requirements of the oil, and numerous reviewers saying this resolved their difficult shifts in the Tremec gearbox in Holden/HSV V8s, infamous for stubborn shifting.
https://www.penriteoil.com.au/products/pro-gear-70w-75-full-syn
I'm keen to try a different gear oil, and see how the shift feels. Really don't want the dealership removing the gearbox when the problem can be improved with better fluids.
Edit - sorry, i see this is a UK specific thread, so Penrite (Australian brand) may not be relevant - but Redline and Motul have similar products in similar specs.

Hi @PaulD, I've had pretty much the same experience as you. Sometimes resistant to go into 1st, a little notchy in 3rd or 4th, and of course the usual into 6th. Its not all the time, not temp related either. I asked my dealership and they its somewhat normal. I asked for a gearbox oil change and they replied 'dont change it' until at least 60k kms.

I've read somewhere on the forum that some owners have used Redline MT LV (70 75) with good results too:

https://www.sparesbox.com.au/part/red-line-mt-lv-gl-4-70w75-gear-oil-946ml-50604-red50604

(sorry just realised UK thread too)

 

[Jajodu]

Hi all
I have a notchy 1st gear, and the usual 5th to 6th difficulty sometimes - i have 16,000km, and it hasn't really gotten better with age.
Anyone tried Penrite Pro Gear 70W-75? Seems to meet all the technical requirements of the oil, and numerous reviewers saying this resolved their difficult shifts in the Tremec gearbox in Holden/HSV V8s, infamous for stubborn shifting.
https://www.penriteoil.com.au/products/pro-gear-70w-75-full-syn
I'm keen to try a different gear oil, and see how the shift feels. Really don't want the dealership removing the gearbox when the problem can be improved with better fluids.
Edit - sorry, i see this is a UK specific thread, so Penrite (Australian brand) may not be relevant - but Redline and Motul have similar products in similar specs.

Have you checked the gear change cable adjustment? I did a how to on the method.

 

[Jajodu]

I found this oil. Seems to be compatible for VN, so should also work for the i30N.

I don't know however where to get it from in europe.

Opie oils do redline gear oil.

 

[PaulD]

Have you checked the gear change cable adjustment? I did a how to on the method.

I went ahead with the oil change from a specialist (using the Penrite) and its definitely better. Still feels like the shift hits mechanical rubbing for 1st and 2nd. Since had a 2yr service with Hyundai recently, and they say the shift is fine - no need to do anything.. Hmmm.

How easy is the cable adjustment?

 

[NULLOBANDITO]

How easy is the cable adjustment?

If you've got ~1h on hand, no reason to not do it.

First you need to remove the battery, then unbolt the battery tray and the ECU. Then pull out the battery tray and you should see the shifter-assembly on top of the gearbox.

You can adjust the 2 wires by pressing the clips that hold em in and readjusting the position of the linkages. I'd recommend no play to very little play in the cable length.

 

[Jajodu]

How-To: Adjust gear change cables correctly

The gearchange in the I30N is very sensitive to cable adjustment, Here is the method to use if you're experiencing notchy or difficult changes. You need to access both ends of the cables and to do this you will need 10mm and 12mm sockets and extensions, along with a ratchet. Remove the...

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.

 

[Vitya4444]

Hi,

Where can i find the gearbox oil change procedure steps?
i30n manual has seperate diff and gearbox oil or i need to change one?

Thank you in advance!

 

[Jajodu]

There's only one drain plug and one filler plug. Takes 2 litres

 

[Vitya4444]

So it has not seperate oil for gearbox and diff?

 

[Jajodu]

The diff is a sealed unit with it's own lubricant, you cannot change it, only the gearbox oil.

 

[Vitya4444]

I can't change it anyway?

 

[Jajodu]

No

 

[Robinvdzz]

Today i fitted the redline MT-LV oil in