Gents,

I have a question about the front differential, and the due service and fluid change. I've been unable to find any info on what is the recommended servicing interval, not in the owner's handbook, nor anywhere else.

Car is 6yo at 107000km and rear diff and transfer box fluids have already been changed twice. Dealer tells me not to worry about front diff yet, as it is used less and servicing interval is bigger, but it is probably coming up soon.

I also want to change gearbox oil with it, probably at 120k, even though that interval is probably even bigger ~160000km/100k miles.

Please share your opinion, thank you!

New Oil is cheaper than a new diff or gbox

But you knew that anyway.

Mine had its differential oil changed at four years/40,000 miles at my request. I was told that LR recommended it be done at six years, presumably about 60,000 miles (100,000km). It will partly depend on use when it is necessary. I have not had the gear box oil changed yet, but there will be threads on here about when it is thought wise to do it, I think maybe six years/60,000 miles. Maybe a search on the Getrag website would be useful too. Only Range Rovers since 1988

Obviously this is only my personal preference, I would change the oil in both diff's at the same time, usually earlier than recommended. Same with for the gearbox, do it earlier than quoted in the schedule.

What I do not understand is the comment in the OP, quote 'Dealer tells me not to worry about front diff yet, as it is used less'
Seems to be a strange comment to make, I realise that the forces on the two diffs may be different at times, but the front diff is part of the drive train and running continuously.

Yes, I wondered too. Probably because it has the active locking diff on the rear axle, as opposed to the normal one, and it is under heavier load, but I am only guessing.

I fully intend on changing the front diff oil soon, as it makes no sense to me to wait that long. I just found it weird the rear and trasnfer box have been changed at 40 and 80k already, but not the front. Couldn't find info about front diff intervals anywhere.

There was no suggestion from the dealer that there was a difference between the differentials from a perspective of when to change the oil. Only Range Rovers since 1988

The open diffs actually have a service interval of 160k miles or 10 years with the locking diffs at 80k or 6 years.

Transfer box fluid is the same at 80k or 6 years.

Have a look in the wiki at the servicing sheets.

I always like to get mine changed well ahead of schedule though. I did all of mine including gearbox at about 65k. Kev

2014 L405 RR Vogue SE 4.4 SDV8 in Corris Grey
2010 L320 RRS HSE 3.0 TDV6 in Stornoway Grey

Here's a link to the servicing sheets for reference:
http://www.fullfatrr.com/gallery/albums/us...sheets.pdf Kev

2014 L405 RR Vogue SE 4.4 SDV8 in Corris Grey
2010 L320 RRS HSE 3.0 TDV6 in Stornoway Grey

Many thanks!

I have changed diff transfer box gearbox every 30k miles - I have had it from 60k it is now on 220k all running fine cant remember where I got the figure from but it was on here as a recommendation from somebody anyway for me it is worth every penny

What is the oil that should be used for the diffs and transfer box? Current:
- 2017 L405 3.0 V6 Autobiography
Sold:
- 2013 L405 4.4 TDV8 Vogue
- 2004 L322 4.4 Vogue (BRC LPG)
- 2002 L322 4.4 HSE (having fixed timing chain guides)
- 2000 P38 4.6 Vogue (BRC LPG)
- 1981 2-door In-Vogue
- 1980 Ex-Army SIII LWB
- 1976 SIII LWB
- 1968 SIIA
Stripped for parts:
- 2003 L322 4.4 Vogue

Diffs = 75W90 GL5 eg. https://www.smithandallan.com/products/tra...l-gl4-gl5/
Transfer box = Shell spec 0753 eg. https://www.smithandallan.com/products/tra...r-box-oil/ Kev

2014 L405 RR Vogue SE 4.4 SDV8 in Corris Grey
2010 L320 RRS HSE 3.0 TDV6 in Stornoway Grey

LR part numbers for rear fiff and transfer case oils are LR019727 and IYK500010.