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Harry Ferguson Tractors Discussion Forum
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TEA20 fluid for the differential/trans

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Boyde from Bram

09-20-2006 11:14:41




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I know I have to change the fluid in the transmission. It needs to be GL1 or 10W30.

Before I found this forum, I asked a Massey Ferguson dealer/service place what I should replace the fluid with, they said 80W90 gear oil. So I followed their advice.

So what damage am I doing if I leave this oil in until spring. I rarely use the rear hydraulics. And it will be parked for the winter.

Regards
Boyde

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phil(va)

09-24-2006 20:11:38




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 Re: TEA20 fluid for the differential/trans in reply to Boyde from Brampton, 09-20-2006 11:14:41  
Based on your limited usage, and the need to get it warm before you drain it, I would leave it thru the winter and drain it in the spring as you seem inclined to do. I doubt that limited use in such a short time will do any discernable damage. As a side note, I have learned not to trust what my MF dealer says about these tractors.



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toolman

09-21-2006 15:07:18




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 Re: TEA20 fluid for the differential/trans in reply to Boyde from Brampton, 09-20-2006 11:14:41  
Dennis i get Oil from Petro Canada called durtran tractor tramission oil, i use my tractor winter and summer, it cost about 60 bucks for a 20 litre and a 4 litre pails but it lasts a long time and no problems in winter and it gets to minus 30 around here sometimes any colder than that i don,t even try and start anything anyway.Im in BC right next to the Alta boader .



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Mike Grisdale

09-21-2006 12:09:26




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 Re: TEA20 fluid for the differential/trans in reply to Boyde from Brampton, 09-20-2006 11:14:41  
The right oil to use is TDH (Transmission ,hydraulic, differential) I used this in -40 weather last winter with no problems..this was after i'd cleaned all the ice and old "whatever-oil-it-was-they-put-in-there" out with methyl hydrate. The 3 point hitch worked well with the rear blade in an exceptionally snowy winter in Saskatchewan.Before I changed it would lift and stay up. Do NOT use heavy gear oil. Check for condensation in the transmission case though it might need changing before it freezes.Take the bottom plugs out and any water should run out.Engine did well and started well with 10-30...Mike

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DennisPinOhio

09-22-2006 04:48:48




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 Re: TEA20 fluid for the differential/trans in reply to Mike Grisdale, 09-21-2006 12:09:26  
Can you tell us a little more about the methyl hydrate-like where it is obtained and how it is applied, etc.?
Thanks.



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Mike Grisdale

09-22-2006 07:36:00




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 Re: TEA20 fluid for the differential/trans in reply to DennisPinOhio, 09-22-2006 04:48:48  
Dennis... the only reason i used methyl hydrate is that it is a gasline antifreeze and absorbs water like a sponge.It also melts ice. If you use TDH oil there will be no need to preheat anything except perhaps the engine for starting. TDH is available at Canadian Tire and Walmart for about $30 for 20litre pail which is a sufficient amount..... ..Mike



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John (UK)

09-20-2006 14:35:12




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 Re: TEA20 fluid for the differential/trans in reply to Boyde from Brampton, 09-20-2006 11:14:41  
If you try to use it over the winter it will be impossible to use the hydraulics as the oil will be too thick...you should drain it as soon as you can and fill it with the correct grade. You will need to get the oil as warm as you can before draining it.....John



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DennisPinOhio

09-21-2006 08:55:28




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 Re: TEA20 fluid for the differential/trans in reply to John (UK), 09-20-2006 14:35:12  
I have the same problem, i.e., wrong oil. Instead of driving the tractor to heat up the fluid,(and possibly causing damage) I am going to try inserting a crankcase heater and let it get the oil good and hot.
What do you think about this idea?
Thanks.



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John (UK)

09-21-2006 10:19:29




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 Re: TEA20 fluid for the differential/trans in reply to DennisPinOhio, 09-21-2006 08:55:28  
Being in a relatively moderate climate I have never had to do that, but what the heck, if it works go for it. If the weather is warm as it should be yet, the easiest way I was thinking is to go about your normal work using the tractor, this would heat the oil naturally and then you could drain it. Let us know how that idea works Dennis, maybe a good idea that we can pass on to others who have this problem. The need for draining the wrong oil will never go away as we know from the number of times we have answered this question on here and as you say it will heat it up without needing to use the tractor (maybe on overnight if it is safe to do so)

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Jim in OH

09-20-2006 12:05:19




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 Re: TEA20 fluid for the differential/trans in reply to Boyde from Brampton, 09-20-2006 11:14:41  
You didn't specify the rating (which determines the additives) but the 80W90 gear oil no doubt has high pressure additives (like phosphorous) that when combined with moisture, form acids that attack the copper, brass and bronze parts in the trans and hydraulics. If it is bone dry, probably nothing will happen, but if there is water/moisture present (like most Fergies) the acid will attack the cupuric metals... not an immediate failure either, but over time these parts may eventually corrode and fail... Personally, I have never heard of a failure (but I have heard of corrosion complaints)..... Jim
----- -----
I might add that most modern uses of the high pressure gear oils are in applications that have no cupuric metals, are well sealed or are operated at temperatures that drive the moisture out. Our Fergusons...NOT.

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DennisPinOhio

09-21-2006 08:52:25




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 Re: TEA20 fluid for the differential/trans in reply to Jim in OH, 09-20-2006 12:05:19  
Cupuric????
Who among us knows the meaning?
Can you "splain this?



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Jim in OH

09-21-2006 10:09:43




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 Re: TEA20 fluid for the differential/trans in reply to DennisPinOhio, 09-21-2006 08:52:25  
Sorry, I misspelled it Cupric = Containing Copper..



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DennisPinOhio

09-22-2006 04:37:13




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 Re: TEA20 fluid for the differential/trans in reply to Jim in OH, 09-21-2006 10:09:43  
Thank you. I learned a new word today.



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