Thread: Oils

As per what others have said re Progear.
although I use 80w90 gear oil in the transfer cases, i fit a atb to all the transfer cases I build and also its a blue colour so a leak can be pin pointed to gearbox or transfer case.

as per land rovers ridiculous service interval of 200k, more likely to change out the gearbox and transfer case at that km's with no change before.
i do 12months or 20K, oil is cheap boxes arent.

I have bought some of this stuff. It seemed to be highly recommended although haven't put it in yet. Meets standard MTF-94 Fluid für Land Rover,

Previously was running on a hybrid of three oils. The shift 1-2 was pretty average.

RAVENOL MTF-2 SAE 75W-80 - Ravenol

Originally Posted by DazzaTD5

As per what others have said re Progear.
although I use 80w90 gear oil in the transfer cases, i fit a atb to all the transfer cases I build and also its a blue colour so a leak can be pin pointed to gearbox or transfer case.

as per land rovers ridiculous service interval of 200k, more likely to change out the gearbox and transfer case at that km's with no change before.
i do 12months or 20K, oil is cheap boxes arent.

So the Penrite Gear Oil 80w90 mineral suits both the transfer case and the diffs so one less product to keep?

Originally Posted by jwb

So the Penrite Gear Oil 80w90 mineral suits both the transfer case and the diffs so one less product to keep?

yes a gear oil 80w90 is fine in the transfer case and diffs.
if you arent running such items as Ashcroft ATBs you could run the penrite pro gear gl4 75w90 in gearbox, transfer case, diffs. but it is rather expensive compared to others.

to further that, you could run pro gear 75w90 (gl5) in everything, you will find if you go into the chemistry of modern gl5 additives that they no longer suffer corroding of yellow/white metals.

Originally Posted by DazzaTD5

yes a gear oil 80w90 is fine in the transfer case and diffs.
if you arent running such items as Ashcroft ATBs you could run the penrite pro gear gl4 75w90 in gearbox, transfer case, diffs. but it is rather expensive compared to others.

to further that, you could run pro gear 75w90 (gl5) in everything, you will find if you go into the chemistry of modern gl5 additives that they no longer suffer corroding of yellow/white metals.

I have an ATB and as you say, they say ep 80/90 gear oil only.

Ok I have finally put the Ravenol in the car. So I just nearly punched the dash going for first. It's changing gears significantly better. Like really delicately. It's expensive but it's the best the gearbox has changed in a long time. Not perfect but big improvement.

My whine is still there.. might be a little quieter. Might be something else.

It is classified as MTF-94. Reasons not to run it is it's expensive and only available direct from them.

RAVENOL MTF-2 SAE 75W-80 - Ravenol

I do wonder whether the Penrite MT-94 might do the same job much cheaper.

Originally Posted by Captain_Rightfoot

I do wonder whether the Penrite MT-94 might do the same job much cheaper.

I've just changed my R380 oil and put Penrite trans gear 75w80 semi synth in.

It says it meets mtf94 specs on the label so I'll see how it goes. I think it's changing better when warm than the old oil did already.

Only done about 30km.

It's unlikely that the whine is caused by the oil, (well it might be if damage has occurred over the last xxkm!) But a whine in a gearbox is usually worn bearings, which could have been caused by the wrong oil or long service intervals or old age... Either way an oil change won't fix it unfortunately.

I'd monitor it very closely as they are MUCH cheaper to fix if you do it before a bearing collapses.