CHANGING OIL

Pembroke

Member
Location
Mt Washington KY
Changing gear oil in the differential on Case 441. Calls for 7 gals. What are you guys using in the older tractors for this? Calls for 90-140. Oil like this is HIGH$$$$$$$$$. tHANKS FOR ANY RESPONSE. Pembroke
 
Changing gear oil in the differential on Case 441. Calls for 7 gals. What are you guys using in the older tractors for this? Calls for 90-140. Oil like this is HIGH$$$$$$$$$. tHANKS FOR ANY RESPONSE. Pembroke
Rural king....$75 for a five gallon bucket..... compared to anywhere else that's cheap 😜
 
I really thing you could get by just fine with 85-140 but I won't guarantee it.
That is not too bad a price by the 5 gallons, about $72.00 via Walmart if I read correctly.
 
Changing gear oil in the differential on Case 441. Calls for 7 gals. What are you guys using in the older tractors for this? Calls for 90-140. Oil like this is HIGH$$$$$$$$$. tHANKS FOR ANY RESPONSE. Pembroke
The 90-140 will work, but that was Case's recommendation 60 years ago, they have no changed their recommendation to Hy-Tran for hydralics, transmission, and rear end. I use the NAPA equivalent.
 
Got me thinking again.

Isn't a rear differential that is only part or half full basically an oil slinger situation where you want the thick oil to stick to the gears as they turn up and out of the oil?

With a transmission and rear end with hytran in it, aren't all the gears pretty much in and under the oil like an oil bath and especially if you add an extra 5 gallons?

Also during the 40's to the 60's weren't about all the auto and tractor engine companies getting there iron and steel in the same mix to make engine blocks and pretty much the same steel mix to make bearings, etc?

At some point advances in metallurgy and oil technology changed from what they used to do.
 
Changing gear oil in the differential on Case 441. Calls for 7 gals. What are you guys using in the older tractors for this? Calls for 90-140. Oil like this is HIGH$$$$$$$$$. tHANKS FOR ANY RESPONSE. Pembroke
as to my response,i would not be too concerned about it being a must to have 140 oil in it. them tractors were the workhorse in their day and pretty much all tractors had 140 oil. have u ever felt the trans or diff case when working for1/2 a day? they get pretty warm, thats why the factory came up with a suitable oil to cover their own azz. just using it as a chore tractor i see no problem to use the good old 80-90 oil. plus ihc used 140 in them old tractors also, then came the TA then they went with the thin hy-tran oil. of course there is the additives in it as well for the gear pressure.
 
Straight weight 50 motor oil has the same viscosity and better lubrication .
i have never heard of using engine oil in a differential, but yes in a gear box. gear oil has extreme pressure additives for hypoid gears and i dont think engine oil uses e p additives. i remember my dad tryed engine oil in his diff on his 65 ford 1/2 ton as he was using it in the bush in cold winters. well that didnt work too good, by the time he got to camp from home the diff was howling like a coyote. and that was in winter time driving.
 
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