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Farmall & IHC Tractors Discussion Forum
Show Parts for Model:

Gear Oil

Author  [Modern View]
Haas

10-31-2012 17:05:00
50.142.111.41



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I went to NAPA to get a 5 gal can of 80W-90 gear oil today. The can I got is labeled 90 gear oil, but the NAPA guy said that it is 80W-90 gear oil and he showed me that on his computer. It is NAPA number 65-205. When I got it home, I read the label and it says it is GL-1 and is for non EP (exteme pressure) applications. This is for use in letter series tractors and my IH-140. I'm thinking I'm going to take this back, because I think I should be using something rated GL-4 or 5 which is for EP applications. He did not have anything in his small store that was labeled 80-90W, but I looked that up on the internet and I think it would be NAPA number 75213. Should I use what I got, or take it back??

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DanR

11-01-2012 06:37:15
67.237.192.158



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 Re: Gear Oil in reply to NoNewParts, 10-31-2012 17:05:00  
Use what you've got. Just add a can of Lucas and walk away. My Farmalls love that stuff.



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NoNewParts

11-01-2012 06:17:20
67.240.145.25



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 Re: Gear Oil in reply to tractor vin, 10-31-2012 17:05:00  

Haas said: (quoted from post at 21:05:00 10/31/12) I went to NAPA to get a 5 gal can of 80W-90 gear oil today. The can I got is labeled 90 gear oil, but the NAPA guy said that it is 80W-90 gear oil and he showed me that on his computer. It is NAPA number 65-205. When I got it home, I read the label and it says it is GL-1 and is for non EP (exteme pressure) applications. This is for use in letter series tractors and my IH-140. I'm thinking I'm going to take this back, because I think I should be using something rated GL-4 or 5 which is for EP applications. He did not have anything in his small store that was labeled 80-90W, but I looked that up on the internet and I think it would be NAPA number 75213. Should I use what I got, or take it back??


65-205 is GL-1 90w mineral oil. good stuff for old tractor trans/rears.

It is not 80w-90 gear oil. 80w-90 is thinner among other things.

I use 65-205 in my early Fords with a pump in the belly..

on other Fords, Farmalls, and JD with no pumps, I use either

65-205 or modern 85w-140 in the rear/tranny.

(can't find straight 140 here, or I would use that to tame old gears)
This post was edited by NoNewParts at 06:18:55 11/01/12.

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NEKS

10-31-2012 18:41:38
71.0.216.160



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 Re: Gear Oil in reply to Haas, 10-31-2012 17:05:00  
My book calls for universal hyd. oil in everything, but the engine. You will find hyd. oil cost less then gear oil. I would take it back. Go to your bulk oil disturbter and get a name brand of hyd. oil. Even big tractor any more use hydraulic fluid where the hydraulic system, transmission, differential and wet brakes are all together. That 90W gear oil is to heavy. Would take all the horses the engine has just to move it in the winter.

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gene bender

11-01-2012 03:09:27
207.177.56.85



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 Re: Gear Oil in reply to NEKS, 10-31-2012 18:41:38  
Those old tractors used 90wt no TAs or hy pumps in those trannys.



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CNKS

10-31-2012 19:01:48
216.144.104.128



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 Re: Gear Oil in reply to NEKS, 10-31-2012 18:41:38  
That tractor is a 140, essentially the same tractor as the 1939 Farmall A, with some upgrades. Those transmissions are known to be noisy from the factory, the best oil to use is 80W140 or even straight 140 in a warm climate it is not too heavy. The only IH tractors that need hyd oil are the ones with a torque amplifier, and those have gear clash when shifting due to the equivalent SAE 10 wt, 20 wt or 10W30. There are still 10s of thousands of Farmall letter series tractors using gear oil -- I have 5 of those and 2 with TA's that use hydraulic fluid.

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Bob M

10-31-2012 17:54:51
69.207.86.27



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 Re: Gear Oil in reply to Haas, 10-31-2012 17:05:00  
Use the GL-1 oil! There is no gearing within a letter series or a 140 tractor transmission that remotely approaches EP loading conditions (eg. sliding contact hypoid gears).



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The Red

10-31-2012 17:41:56
69.246.205.0



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 Re: Gear Oil in reply to Haas, 10-31-2012 17:05:00  
You can fill about anything in the old tractors and be OK. Last H Tranny/rear end I filled was 85W-140 I believe.



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