What kind of oil to use
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=138606
Printed Date: 30 Jul 2025 at 3:44pm
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Topic: What kind of oil to use
Posted By: oemj
Subject: What kind of oil to use
Date Posted: 20 May 2017 at 3:34pm
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I just purchased an Allis Chalmers WD 45 tractor. I want to know what kind and weight oil to put in the rear end, and where the wet clutch is. Can I use synthetics where the wet clutch is? What weight should I use in the rear end? What weight for the wet clutch? Can I use any hydraulic oil for the hydraulics? I've never had any piece of equipment with a wet clutch, so I don't want to ruin it. Thanks, I have a manual coming, but don't have it yet. 
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Replies:
Posted By: DrAllis
Date Posted: 20 May 2017 at 5:52pm
| You can use any Universal hydraulic/transmission fluid in EVERY compartment on the tractor except the engine. Synthetic??? why so expensive of an oil when plain old Hy-Tran will work...... |
Posted By: oemj
Date Posted: 20 May 2017 at 7:52pm
| Thanks, but I should get different weights right? Like 85-90 for rear end, 20 weight for hydraulics, etc. |
Posted By: DrAllis
Date Posted: 20 May 2017 at 7:58pm
| NO !!! ! one oil in EVERY compartment as long as it's a Hy-Tran type fluid. You'll need 5 1/2 gallons to refill everything except the final drive pans which take about 1 1/2 quarts each. You could use 80-90 wt in them if you like or Hy-Tran. |
Posted By: Dave(inMA)
Date Posted: 20 May 2017 at 8:03pm
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Some use the 85-90 weight oil in the final drives as those pans tend to leak anyway, and the Hy-tran is lighter than the 85-90. ------------- WC, CA, D14, WD45 |
Posted By: oemj
Date Posted: 21 May 2017 at 5:39pm
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Would I use a 85-90 weight wet clutch? What weight should I use on my hydraulics? |
Posted By: Dave(inMA)
Date Posted: 21 May 2017 at 7:04pm
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As Dr Allis said......you can use Hy-Tran everywhere except in the engine. Hy-Tran is a combination oil that was developed well after your WD45 was built....it works for both hydraulics and in the tranny, differential, etc. I used 85-90 gear oil in the finals only because they are leaky and it's heavier than Hy-Tran. ------------- WC, CA, D14, WD45 |
Posted By: CTuckerNWIL
Date Posted: 21 May 2017 at 7:37pm
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Would I use a 85-90 weight wet clutch? NO What weight should I use on my hydraulics? Like everybody said, Universal Transdraulic Fluid. https://d2ul0w83gls0j4.cloudfront.net/products/48/1200/481440.jpg" rel="nofollow - https://d2ul0w83gls0j4.cloudfront.net/products/48/1200/481440.jpg  Walmart has the same thing in "Super Tech" so called heavy duty transmission and hydraulic oil.------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |