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Harry Ferguson Tractors Discussion Forum

trans fluid

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brian graves

04-01-2008 23:13:18

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i have a to20 what oil goes in for this and the pto can i buy this at walmart or tractor supply as there is no dealer close what is it called thanks

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Fred T. Hart Jr.

04-05-2008 11:40:20

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Re: trans fluid in reply to brian graves, 04-01-2008 23:13:18

I thought the the Ferguson Company directed that you use 90wt. mineral oil in the trans/hyd systems of these old tractors.

The main reason for using the mineral oil was not for the benefit of the hyd system, it will work fine on motor oil, but to correctly lube the bronze or brass transmission bearings. These bearings are old technology and need old technology oil to protect them.

Is that not right?

Most everyone is so concerned about protecting the hyd system and forget about the bearings in the transmission.

I guess if you do not work the tractor very hard there would be no damage to the bearings, but I am not going to take that chance with my little 1957, TO-35's transmission. It's worked fine for 50+ years with mineral oil and plan on keeping mineral oil in it as long as I can purchase it.

A few bucks saved on oil cost would be nothing compared to a transmission rebuild.

Just my two cents!!!

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Jim in OH

04-07-2008 07:46:28

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Re: trans fluid in reply to Fred T. Hart Jr., 04-05-2008 11:40:20

Fred T. Hart Jr. said: (quoted from post at 11:40:20 04/05/08) ...The main reason for using the mineral oil was not for the benefit of the hyd system, it will work fine on motor oil, but to correctly lube the bronze or brass transmission bearings. These bearings are old technology and need old technology oil to protect them.

Is that not right?

Not entirely... you don't need the old technology, infact that is the point of using modern motor oil.. it is new technology, but does not have the corrosive additives that harm copper and brass... Modern transmission gear oils (API GL5 and GL4) have sulphur and phosphorus as additives that when exposed to moisture become acids that damage brass and copper. Old fashioned GL1 90 wt mineral oil does not have these additives. On the other hand, modern motor oils don't have the harmful phosphorus or suphur either (mostly because they might damage a cat converter), but they do contain other additives like zinc and moly that are far better for the transmission than the old GL1 with nothing. YOu can continue to use the old GL1 gear oil and be fine for the next 50 years or like some (me included) switch to a modern engine oil and get maybe another 75 years.. either way, I won't be around to prove it... Jim in OH

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Toora Stephen

04-03-2008 21:11:04

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Re: trans fluid in reply to brian graves, 04-01-2008 23:13:18

My dealer advised me to use 15 litres of diesel to clean out my transmission. I ran it for a couple of minutes and pushed the hydraulics up and down a few times.

I don't know about driving it around. I suspect if you do so briefly and slowly you will do no damage.

Then flush it all out, fill it up with the correct fluid and voila!

- TS

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John(UK)

04-03-2008 05:54:41

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Re: trans fluid in reply to brian graves, 04-01-2008 23:13:18

You can use a multi-grade oil in the Transmission and Hydraulic system without any problems. The grade will vary depending on the temperatures in your region, as a guide you use whatever they use in the car and truck engines 15W/30 or 15W/40. If you are in a cold climate this will be much better as it doesn't get as thick as the original spec. oil when cold.If you have to move snow in winter you won't have to wait while the oil thins out to get going.....John

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Jeff-oh

04-02-2008 05:07:05

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Re: trans fluid in reply to brian graves, 04-01-2008 23:13:18

If you want the GL-1 gear oil listed in the manuals it is available from NAPA. It is PN 65-205 for the 5 gal. bucket and 65-201 for a 1 gal. jug.

Call first as often they must get it from their central wearhouses which takes about a day or two.

If your going to change out the oil, I'd recomend the following procedure:

Link to the transmission cleaning procedure

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Dennis(Ohio)

04-02-2008 05:02:00

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Re: trans fluid in reply to brian graves, 04-01-2008 23:13:18

I put 20w50 in my TE 20 and it works great. There is no slugishness to the lift when it"s cold. Bought the oil at Walmart - store brand.
Suggest that you do the work necesssary to clean the sumps as has been suggested.
Please let us know how this works out for you.

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Bob (Aust)

04-02-2008 01:02:49

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Re: trans fluid in reply to brian graves, 04-01-2008 23:13:18

A few weeks ago Jerry posted this in respect to transmission oil:

"The spec calls for a 90W (80W for winter) GL1 type oil. this oil can be found at NAPA but sometimes needs to be ordered. Someone might be able to give you the NAPA part number or you can search the archives for it. In England, they recommend 15W30 motor oil and a regular contributor to this forum (gshadel)is successfully using 20W50 motor oil in his TO-20. Whatever you use, you need ~6 gallons and you should consider cleaning and flushing the sumps before you add fresh oil. Again, and archive search for a post by Jeff(OH) describing the procedure he uses would be valuable reading for you."

Do not use 90 grade gear oil in the transmission. The correct transmission oil is around the same viscosity as engine oil.

There have been debates on this forum regarding engine oil - I'm not going there! :lol: I use a high quality, multi grade detergent oil in my TEA20. You can use any good quality multi grade oil, maybe a bit thinner in winter if you live in a cold area.

Use the Search function and you will get loads of information.

Bob in Oz

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2plow

04-03-2008 18:44:47

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Re: trans fluid in reply to Bob (Aust), 04-02-2008 01:02:49

Are you guys sure it is ok to drive the tractor around after pouring 2 gals of kerosene in the tranny. I'm about to add the kero iand really want to know if this is a safe thing to do? Thanks Guys

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Jim in OH

04-03-2008 19:05:26

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Re: trans fluid in reply to 2plow, 04-03-2008 18:44:47

2plow said: (quoted from post at 18:44:47 04/03/08) Are you guys sure it is ok to drive the tractor around after pouring 2 gals of kerosene in the tranny. I'm about to add the kero iand really want to know if this is a safe thing to do?
Thanks
Guys

If you are reffering to Jeff's post, I don't think the reference was to driving it with the kerosene in it.. but just to flush it out... like with a pressure hand sprayer... I don't think that driving it around with kerosene is a good idea, but if you don't load it up, it probably wouldn't hurt anything either.... Jim in OH

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2plow

04-03-2008 20:57:47

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Re: trans fluid in reply to Jim in OH, 04-03-2008 19:05:26

s. all that said. Letting a gallon or two of diesel or kerosene sit in the transmission case overnight will eliminate a lot of paper towels. Driving it around with out any load will not hurt the transmission gears. The only reason to drive around is to slosh the cleaning solution around... thus you have to decide how effective that would be.

I do not believe you need 6 gallons. a gallon or two is quite enough.

Jeff

Jim, Am I somehow missing something? Really sounds like he is advising driving the tractor around to really give it a wash. If this can be done ,without harming the tractor, it's what I'll do tomorrow.

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Jim in OH

04-04-2008 11:49:08

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Re: trans fluid in reply to 2plow, 04-03-2008 20:57:47

2plow said: (quoted from post at 20:57:47 04/03/08) ...

Jim, Am I somehow missing something? Really sounds like he is advising driving the tractor around to really give it a wash. If this can be done ,without harming the tractor, it's what I'll do tomorrow.

Maybe that is something he added sometime after I first read it and did mine.... at least I don't remember that.. but like said... don't go "plowin'" and it probably won't hurt anything.. Jim in OH

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