821 Fluid in my WD45?
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=192286
Printed Date: 05 Apr 2026 at 12:43am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 821 Fluid in my WD45?
Posted By: JimWenigOH
Subject: 821 Fluid in my WD45?
Date Posted: 09 Dec 2022 at 5:10pm
| Did some repair work on myWD45 hydraulics, ready to refill the system. Any reason I wouldn't want to refill the hydraulic system with 821 fluid? It would be one less lubricant to keep on hand if I do. |
Replies:
Posted By: DrAllis
Date Posted: 09 Dec 2022 at 5:17pm
| It will work fine. |
Posted By: Dakota Dave
Date Posted: 09 Dec 2022 at 6:22pm
| It's a way better choice than the 20w nd that came in it when new. All my tractor have modern UTF in them. Dont have to wait an extended time to warm up when cold at 20 below I had to wait 20 to 30 minutes after starting before I could lift the loader. |
Posted By: JimWenigOH
Date Posted: 09 Dec 2022 at 7:37pm
| Thanks, 821 it is. |
Posted By: SteveM C/IL
Date Posted: 09 Dec 2022 at 8:13pm
| My 220 shares some small things with my 45 so the 45 got switched to power fluid years ago. |
Posted By: 55allis
Date Posted: 09 Dec 2022 at 11:17pm
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I run the 20w John Deere hydraulic oil through the hydraulics and power steering on my 45… Reason why is because everything else has it and it seems to work just right in the winter and summer. ------------- 1955 AC WD45 diesel with D262 repower, 1949 AC WD, 1963 A-C D17 series 3, several Allis garden tractors 
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