Ferguson TO-30 Rear End Oil

rdonde

New User
Hello - I had posted about a month ago regarding the rear end oil to use in my Ferguson TO-30. Just wanted to get everyone's opinion on something. My father works for a CAT dealer and some guys in the shop there said to use CAT SAE 80W-90 GEAR OIL. Would this be good to use in my TO-30.

Thanks
Ryan
 
That may not be the best choice since it has EP additives, which are not recommended for use with brass components. It is also a little heavy for winter use, it will slow the hydraulics down.

The book recommends 90w mineral oil, but that is still going to slow the hydraulics in cold weather.

The 15w-40 engine oil is a popular replacement.
 
Depending on where you live you should be using GL-1 mineral oil based trans/hydraulic oil. A lot of us in the freezing north have switched to
motor oil. I use 10w-30 for the engine and transmission/hydraulics. Mineral oil attracts moisture and you will have to change it more frequently,
once a year depending on use. Motor oils does not have the same attraction properties and allow infrequent complete changes and also
allows the lift arms to work easily in the winter without having to wail for the oil to warm up.

I would say do not use the 80/90wt gear oil.

To properly change your oil you will need to open the two drain plugs on the bottom of the transmission and rear end housings, this is a shared
oil system. When you add oil in the transmission filler near the shifter, do it slowly as this has to make its way to the reared.

Keep us posted
 
I believe if you look at the Ferguson book it actually says from the factory they used GL-1 80-90 Mineral oil. As John(UK) had mentioned several times, over the years oil has made great steps in becoming much better. He also talked to the oil companies several times to keep up on the improvements. I see nothing wrong with the 15W 30 especially in the winter. It is your choice.
 
I changed the transmission, hydraulic, gear oil in my 1957 TO35 last year.

I ordered GL-1 90 weight non detergent mineral oil from NAPA.

Summer months it works fine, winter months I have to wait a short while for the lift to
come up, normally just a couple of minutes. By the time the motor has warmed up a bit
the lift is ready.

I read all that stuff about protecting the yellow metal bearings in the transmission
with GL-1, so I when with it, next time I may use shell rotella 15w40 as it has zinc.

If we could buy non detergent multi grade over here like they can in England we would be
golden. The non detergent oil is suppose to let the dirt particles drift to the bottom
and be carried out in a oil change, detergent oil keeps the dirt particles suspended so
they would be caught in the oil filter, however our old tractors do not have one!
 
All we've ever used in our 3 Fergies and 8N is 80w90 gear oil. Now I'm reading here and there that it's not good for them, so what's the truth? Some guys on the 8N forum are recommending using UTF, wondering if that's acceptable.
 

On my first trip to local MF dealer I asked the same question; what oil to use in rear end and transmission. Answer; API Service GL-1 of SAE 90 weight for here in Maine year round.

On the suggested product's poop sheet from Citgo its pour point of this SAE 90 gear lube is 10 degrees F. So anyone in colder climate may want a less viscous product.
 
if you are using 80W90 GEAR OIL i would like to see that. supposed to use either 90w or 80w mineral oil. i personally use 15w40 in mine and never had any probs yet with transmission or lift.
 
(quoted from post at 13:01:13 10/15/15) Depending on where you live you should be using GL-1 mineral oil based trans/hydraulic oil. A lot of us in the freezing north have switched to
motor oil. I use 10w-30 for the engine and transmission/hydraulics. Mineral oil attracts moisture and you will have to change it more frequently,
once a year depending on use. Motor oils does not have the same attraction properties and allow infrequent complete changes and also
allows the lift arms to work easily in the winter without having to wail for the oil to warm up.

I would say do not use the 80/90wt gear oil.

To properly change your oil you will need to open the two drain plugs on the bottom of the transmission and rear end housings, this is a shared
oil system. When you add oil in the transmission filler near the shifter, do it slowly as this has to make its way to the reared.

Keep us posted

New to the forums, and new to my 1954 TO30. I just got it two weeks ago, so I'm going through everything to get it back to original operation.
My trans/hydraulic oil check shows the milky white tattle tailed signs of moisture. So I too am ready for an oil change. I haven't even received my manuals in the mail yet! Which brings me to my question. . .How many gallons of oil for the trans/hydraulic fill capacity?
 

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